How to restore B20 on x720? - LeEco Le Pro3 Questions & Answers

My phone doesnt have B20 anymore because i ****ed up big time by installing this jui rom.
I have tried flashing NON-HLOS.bin in fastboot but it doesnt work. I am running out of ideas, tried a lot of things but nothing works.
If someone has any info on this topic please share, B20 is essential to me.
Thanks.

I'm starting to believe it's your EFS partition (some backups have EFS backed up...it's not a default option though.) Alternatively, you can see if this will bring your device back to life. My guess is the IMEI is corrupt and it's not able to authenticate your device onto the LTE frequency (strange that HSPA works though...)
https://forum.xda-developers.com/le-pro3/help/unlocking-bands-t3565979
Otherwise, it sounds like Le Eco will need to manually reflash the EFS partition to your device (ie: sending it in for repair.)

Damn i dont have any efs partition backed up ;/
I guess i will have to try this too, will report back if it worked.
Fastboot flash system,boot and format data isnt working either. The other commands for flashing recovery and files are working though..

testreaper said:
Damn i dont have any efs partition backed up ;/
I guess i will have to try this too, will report back if it worked.
Fastboot flash system,boot and format data isnt working either. The other commands for flashing recovery and files are working though..
Click to expand...
Click to collapse
On the 727 the command to format in fastboot is fastboot erase userdata and I flashed system by flashing everything else then flashing twrp and flashing system image from TWRP. Like you I screwed up with the JUI junk and no longer have LTE. My fault and my fault alone.I shouldn't have went all kamikaze and flashed stuff that wasn't meant for my device.Anyhow,if I hear of or figure out a solution I will message you or post here.Id appreciate if you would do the same.

bob24260 said:
On the 727 the command to format in fastboot is fastboot erase userdata and I flashed system by flashing everything else then flashing twrp and flashing system image from TWRP. Like you I screwed up with the JUI junk and no longer have LTE. My fault and my fault alone.I shouldn't have went all kamikaze and flashed stuff that wasn't meant for my device.Anyhow,if I hear of or figure out a solution I will message you or post here.Id appreciate if you would do the same.
Click to expand...
Click to collapse
Yep. Same here, just how it goes. For further help, I tried flashing the modem.img I found for bringing a x720 back to a x727 and it made things a bit worse, won't even recognize sim now .
Maybe something in here would help\: http://www.androidbrick.com/ultimat...agon-xiaomi-mi5-imei-and-baseband-repair-fix/ It looks a bit outside of my knowledge range.

benjmiester said:
Yep. Same here, just how it goes. For further help, I tried flashing the modem.img I found for bringing a x720 back to a x727 and it made things a bit worse, won't even recognize sim now .
Maybe something in here would help\: http://www.androidbrick.com/ultimat...agon-xiaomi-mi5-imei-and-baseband-repair-fix/ It looks a bit outside of my knowledge range.
Click to expand...
Click to collapse
I have the modem out of an OTA if you want to flash it so you can get your sim back being recognized.It won't bring your LTE back but at least you'll be able to use it.

bob24260 said:
I have the modem out of an OTA if you want to flash it so you can get your sim back being recognized.It won't bring your LTE back but at least you'll be able to use it.
Click to expand...
Click to collapse
Yes, please! Better than nothing for sure.

benjmiester said:
Yes, please! Better than nothing for sure.
Click to expand...
Click to collapse
I just remembered...here is a modem from our us variant the x727.
https://www.androidfilehost.com/?fid=601300970940399635
It comes from this thread.
https://forum.xda-developers.com/le-pro3/how-to/flashing-guide-roundup-leeco-le-pro-3-t3511901
Just unzip and flash in fastboot. The method in this thread looked promising to get LTE back but unfortunately it didnt work.But at least you can get your sim working again with the modem.

bob24260 said:
I just remembered...here is a modem from our us variant the x727.
https://www.androidfilehost.com/?fid=601300970940399635
It comes from this thread.
https://forum.xda-developers.com/le-pro3/how-to/flashing-guide-roundup-leeco-le-pro-3-t3511901
Just unzip and flash in fastboot. The method in this thread looked promising to get LTE back but unfortunately it didnt work.But at least you can get your sim working again with the modem.
Click to expand...
Click to collapse
That's actually that one that did the sim problem. Is it supposed to go into "modem" as in fastboot flash modem modem.img? Because that's what I did. I was thinking maybe it's supposed to be fasboot flash radio not modem...
The paragraph above it sounds interesting... CN18s to US19s rom zip. Supposed to restore to stock US rom "LTE bands and all" from a Chinese. I'm guessing that's already been tried? I'm going to try it anyway to see if it fixes my sim issue if nothing else.

benjmiester said:
That's actually that one that did the sim problem. Is it supposed to go into "modem" as in fastboot flash modem modem.img? Because that's what I did. I was thinking maybe it's supposed to be fasboot flash radio not modem...
Click to expand...
Click to collapse
Honestly I believe I used the modem command instead of radio.I apologize but I think I have the radio from the OTA on my other laptop and I won't have access to it until morning.I will upload it first thing in the am and message you the link.Anyhow,the one from the thread flashed fine for me but it didnt bring back LTE

bob24260 said:
Honestly I believe I used the modem command instead of radio.I apologize but I think I have the radio from the OTA on my other laptop and I won't have access to it until morning.I will upload it first thing in the am and message you the link.Anyhow,the one from the thread flashed fine for me but it didnt bring back LTE
Click to expand...
Click to collapse
No problem. I'll try a few other things and if that doesn't work, we'll see if you radio from the OTA works. I'm redownloading the modem zip from the thread to see if maybe it was just a bad DL. I did dl it on my phone, sent it to google drive and downloaded to my PC from drive so maybe that messed it up. I'm also going to try that CN18s to US 19s as well. Possibly that first since it might fix both. I hope!

benjmiester said:
That's actually that one that did the sim problem. Is it supposed to go into "modem" as in fastboot flash modem modem.img? Because that's what I did. I was thinking maybe it's supposed to be fasboot flash radio not modem...
The paragraph above it sounds interesting... CN18s to US19s rom zip. Supposed to restore to stock US rom "LTE bands and all" from a Chinese. I'm guessing that's already been tried? I'm going to try it anyway to see if it fixes my sim issue if nothing else.
Click to expand...
Click to collapse
It doesn't work to bring LTE back.
---------- Post added at 02:44 AM ---------- Previous post was at 02:42 AM ----------
benjmiester said:
No problem. I'll try a few other things and if that doesn't work, we'll see if you radio from the OTA works. I'm redownloading the modem zip from the thread to see if maybe it was just a bad DL. I did dl it on my phone, sent it to google drive and downloaded to my PC from drive so maybe that messed it up. I'm also going to try that CN18s to US 19s as well. Possibly that first since it might fix both. I hope!
Click to expand...
Click to collapse
I tried it 3 separate times and it didnt work for me.Maybe it will for you.Lets hope!

bob24260 said:
It doesn't work to bring LTE back.
---------- Post added at 02:44 AM ---------- Previous post was at 02:42 AM ----------
I tried it 3 separate times and it didnt work for me.Maybe it will for you.Lets hope!
Click to expand...
Click to collapse
OK the 18s to 19s CN to US fixed the sim issue but still no LTE as expected. At least that's fixed though!

benjmiester said:
OK the 18s to 19s CN to US fixed the sim issue but still no LTE as expected. At least that's fixed though!
Click to expand...
Click to collapse
It flashes the same radio that you had tried to flash earlier.Hopefully we will figure it out at some point.

Related

permanent bootloop samsung note 4 sm-n910p

ok heres the issue....im not sure what i did wrong. i flashed a rom and got boot looped, so i said what the heck and went to odin thinking id flash stock firmware back...i did and still bootloop, then i deleted dalvik cache...still boot loop...so i flashed twrps and tried reflashing new rom...still bootloop.....wtf... so i tried odin again...bootloop...i need to fix this asap...any help..obviously this is serious if i cant get the bootloop to stop. recovery and download mode are working so no hard brick.
Primal instinct said:
ok heres the issue....im not sure what i did wrong. i flashed a rom and got boot looped, so i said what the heck and went to odin thinking id flash stock firmware back...i did and still bootloop, then i deleted dalvik cache...still boot loop...so i flashed twrps and tried reflashing new rom...still bootloop.....wtf... so i tried odin again...bootloop...i need to fix this asap...any help..obviously this is serious if i cant get the bootloop to stop. recovery and download mode are working so no hard brick.
Click to expand...
Click to collapse
Hi,
I have reported this thread to be moved to the right Q & A section where you might be able to get help quickly.
Good luck.
You flashed a custom rom?
well did you check the bootloader and modem?
example: your old firmwara was based on a coh4 and the new custom is based on coj3.. then you get bootloops.
In this case please download the fitting bl & modem to your rom!
Primal instinct said:
ok heres the issue....im not sure what i did wrong. i flashed a rom and got boot looped, so i said what the heck and went to odin thinking id flash stock firmware back...i did and still bootloop, then i deleted dalvik cache...still boot loop...so i flashed twrps and tried reflashing new rom...still bootloop.....wtf... so i tried odin again...bootloop...i need to fix this asap...any help..obviously this is serious if i cant get the bootloop to stop. recovery and download mode are working so no hard brick.
Click to expand...
Click to collapse
what version are you from the start before you flashed? please provide complete information
Its easy as anything
Download your phones official firmware from sammobile.com
Flash through odin in pda/ap tab
ankahuja said:
Its easy as anything
Download your phones official firmware from sammobile.com
Flash through odin in pda/ap tab
Click to expand...
Click to collapse
well ive done that like 3 times and it still wont come out of bootloop. its as if the phones bricked...turns on then tries to start up but turns right back off. it sometimes goes as far as saying android is starting and optimizes a few apps and shuts off
kerbiii said:
what version are you from the start before you flashed? please provide complete information
Click to expand...
Click to collapse
I originally was on android 5.1.1 cog5 build for sprint...then went to cm 12.1 remix by sabermod....when i used odin to flash back to original firmware, it kept bootlooping. anything helps
Primal instinct said:
I originally was on android 5.1.1 cog5 build for sprint...then went to cm 12.1 remix by sabermod....when i used odin to flash back to original firmware, it kept bootlooping. anything helps
Click to expand...
Click to collapse
Trying going back to a 5.0.1 firmware
N910PVPU3BOF5 ( I pulled that from N910P) Didn't remember Sprint model number.
So if I'm wrong find the correct model of sammobile and download 5.0.1.
See what that does. Bootloader should not be locked so it should be possible,
Primal instinct said:
I originally was on android 5.1.1 cog5 build for sprint...then went to cm 12.1 remix by sabermod....when i used odin to flash back to original firmware, it kept bootlooping. anything helps
Click to expand...
Click to collapse
what version where you trying to get back?? if its lower 5.1.1 it might be impossible for now since the new bootloader wont let you downgrade,, if not just try wipe cache and factory reset
kerbiii said:
what version where you trying to get back?? if its lower 5.1.1 it might be impossible for now since the new bootloader wont let you downgrade,, if not just try wipe cache and factory reset
Click to expand...
Click to collapse
I was on the correct firmware. but for some reason even if I use odin to flash newer firmware coj6 it still doesn't boot up.
kerbiii said:
what version where you trying to get back?? if its lower 5.1.1 it might be impossible for now since the new bootloader wont let you downgrade,, if not just try wipe cache and factory reset
Click to expand...
Click to collapse
update: i can use cyanogenmod for a few minutes but then it shuts off again. my sprint sim card is not readable which is wierd since its a sprint rom cog5 baseband. any ideas :crying::crying:
deroyabun said:
You flashed a custom rom?
well did you check the bootloader and modem?
example: your old firmwara was based on a coh4 and the new custom is based on coj3.. then you get bootloops.
In this case please download the fitting bl & modem to your rom!
Click to expand...
Click to collapse
i downloaded and installed the correct bootloader and modem but still no bueno. i got cyanogenmod for trltespr to work and boot up but sim card not readable and it shuts down after a few minutes. thats really wierd considering its a sprint based rom. any ideas
I having a similar issue for a few months now. Nobody seems to have a clear answer. I am not a noob and have flashed back to factory a million times on other phones.. I have spent hours trying everything with no luck. Sprint store will not help... pretty frustrating. Let me know if you find a solution.
Have you tried a new battery yet?
Sent from my iPhone using Tapatalk
amongunz said:
I having a similar issue for a few months now. Nobody seems to have a clear answer. I am not a noob and have flashed back to factory a million times on other phones.. I have spent hours trying everything with no luck. Sprint store will not help... pretty frustrating. Let me know if you find a solution.
Click to expand...
Click to collapse
me too, i also have a bootloop for a couple of months now. tried literally every single combination of bootloaders/modems/kernels/ROMs . i can't even get into recovery, but can get into download mode.
do you guys think trying another battery may seriously help? how could a new battery help getting out of a bootloop if download and/or recovery mode work fine?
I don't think another battery will do anything. I think it is all software. I can flash CM11 btw, so you should try that. But my system is extremely unstable... it works... but is beyond frustrating. my smart watch wont work.. have to restart phone throughout day.... so many problems I cant even list them all.
---------- Post added at 08:29 PM ---------- Previous post was at 08:28 PM ----------
Chasef254 said:
Have you tried a new battery yet?
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
A battery? How in the world would that help? That makes no sense... no offense, just sounds like you are asking someone to unnecessarily to spend $$$ when it is clearly software.
I'm having the same problems and want to know if op has tried it so I'll know if it's been ruled out of the problem thats why. Ok so it's software. You have the solution. No offense.
Sent from my iPhone using Tapatalk
d0p3t said:
me too, i also have a bootloop for a couple of months now. tried literally every single combination of bootloaders/modems/kernels/ROMs . i can't even get into recovery, but can get into download mode.
do you guys think trying another battery may seriously help? how could a new battery help getting out of a bootloop if download and/or recovery mode work fine?
Click to expand...
Click to collapse
I think this is a samsung issue. I am going to try and see if i can replace motherboard bc thats the only logical option. I can remarkably download and run (for a few minutes) cm12.1 but my sprint sim card is unrecognized (wierdly). I dont think its the modem or bootloader....ill update yall if i find a fix. Thanks P.I
amongunz said:
I having a similar issue for a few months now. Nobody seems to have a clear answer. I am not a noob and have flashed back to factory a million times on other phones.. I have spent hours trying everything with no luck. Sprint store will not help... pretty frustrating. Let me know if you find a solution.
Click to expand...
Click to collapse
The only solution i can find is to replace the motherboard or replace phone all together.
Primal instinct said:
I think this is a samsung issue. I am going to try and see if i can replace motherboard bc thats the only logical option. I can remarkably download and run (for a few minutes) cm12.1 but my sprint sim card is unrecognized (wierdly). I dont think its the modem or bootloader....ill update yall if i find a fix. Thanks P.I
Click to expand...
Click to collapse
Were you able to get it fixed? I'm probably going to go to a phonerepair shop this weekend or next week and see what they say or can do.

OEM_NV_BACKUP Invalid, sim1 has imei sim 2 doesnt and No signal

Ok I have been an xda member for almost 8 years and this is my first thread , I have always found through search the answer to my problems with phones, but I cant for the life of me come up with anything on this. After ota upgrade to oxygenos 2.1.2 I lost lte (att/cricket) at first I thought it was imei related on att side, nope, then I tried reflashing modem manually through fastboot and somewhere in the procees went back and I had to reflash using hard bick method, after that I lost both imei and no signal , after a bunch of tinkering ive managed to get sim1 imei back but no signal!???? any ideas?
Same issue i got. Have sent a note to Support @ OnePlus. I have a Team Viewer session on coming sunday. Will let you know how it goes
hopefully it is software "fixable" and you we dont have to send it in to a repair center
Try to reflash full rom with firmware via fastboot.
acmerw said:
Try to reflash full rom with firmware via fastboot.
Click to expand...
Click to collapse
All options tried. Only one SIM restores successfully. Hopefully OnePlus support team fixes it. Will keep you posted.
ive Hard brick restored, manually fastboot flashed each partition, efs backup restored through twrp
fesar said:
All options tried. Only one SIM restores successfully. Hopefully OnePlus support team fixes it. Will keep you posted.
Click to expand...
Click to collapse
any news?
bump
androidbrick.com

Moto X style XT1575 WiFi don't work

Hello everyone, I'm new to the forum, I'm looking for help with a Moto X style XT1575. I tell you the problem: I bought a Moto X Style used on the internet and it turns out that WiFi does not work, the phone is with MM 6.0.1. Entering Configuration, WiFi, you see a line with movement, as if the phone is still searching for networks with the switch turned off and when you try to activate it, it immediately goes back on by itself. I was reading a bit about this error and it seems quite repeated, not only in this model but also in other Motorola. I saw cases in which besides the WiFi also does not work the Bluetooth, in my case the problem is only in the Wifi. The phone is not rooted or anything, it is factory and reset, I am not sure if it is free but apparently yes, because I accepted sims from two different companies.
Could you help me solve this? From already thank you very much
(I'm using the Google translator, sorry if something I say is not understood)
NamelessGhoulx said:
Hello everyone, I'm new to the forum, I'm looking for help with a Moto X style XT1575. I tell you the problem: I bought a Moto X Style used on the internet and it turns out that WiFi does not work, the phone is with MM 6.0.1. Entering Configuration, WiFi, you see a line with movement, as if the phone is still searching for networks with the switch turned off and when you try to activate it, it immediately goes back on by itself. I was reading a bit about this error and it seems quite repeated, not only in this model but also in other Motorola. I saw cases in which besides the WiFi also does not work the Bluetooth, in my case the problem is only in the Wifi. The phone is not rooted or anything, it is factory and reset, I am not sure if it is free but apparently yes, because I accepted sims from two different companies.
Could you help me solve this? From already thank you very much
(I'm using the Google translator, sorry if something I say is not understood)
Click to expand...
Click to collapse
Is the bootloader unlocked?
No, I think it was officially updated to MM and was left with this problem.
NamelessGhoulx said:
No, I think it was officially updated to MM and was left with this problem.
Click to expand...
Click to collapse
If the bootloader is locked the solution i can think of is to flash the latest firmware (if available).
If there any hardware fault then flashing firmware won't fix this.
Reflash MM? Would that fix the WiFi? I have read cases where the official update itself generates the problem, and they flash the modem and it works, without having to reload the whole system. I do not really know what to do
NamelessGhoulx said:
Reflash MM? Would that fix the WiFi? I have read cases where the official update itself generates the problem, and they flash the modem and it works, without having to reload the whole system. I do not really know what to do
Click to expand...
Click to collapse
Go here
https://forum.xda-developers.com/moto-x-style/general/xt1575-stock-mphs24-49-18-16-files-t3641863
And flash non-hlos.bin and fsg.bin (at your own risk)
This may fix it.
And don't forget to see if the build version matches.
It looks like the versions match. To do this I have to unlock the bootloader and root the phone, is that correct? I'm a rookie, you'll see
NamelessGhoulx said:
It looks like the versions match. To do this I have to unlock the bootloader and root the phone, is that correct? I'm a rookie, you'll see
Click to expand...
Click to collapse
Those are stock images so i don't think you need to unlock bootloader. Just flash via fastboot.
Only flash non-hlos.bin and fsg and also Bluetooth if Bluetooth isn't working.
You can flash via fastboot?
In that post says it's for Pure and my phone is Style. I know they are the same but that clarification made me doubt.
I have not tried because I do not understand how to do it, I see many posts about this and I do not know where to start
NamelessGhoulx said:
In that post says it's for Pure and my phone is Style. I know they are the same but that clarification made me doubt.
I have not tried because I do not understand how to do it, I see many posts about this and I do not know where to start
Click to expand...
Click to collapse
Read carefully the first and second line of the screenshot you have given. It show moto x pure edition.
Update to Nougat would solve this or would it be better to try to flash only those files as it is now in MM?
I could only update using my operator's internet
NamelessGhoulx said:
Update to Nougat would solve this or would it be better to try to flash only those files as it is now in MM?
I could only update using my operator's internet
Click to expand...
Click to collapse
You can't update using mobile data you have to use wifi.
Marshmallow doesn't allow updates via mobile data.
But u can use other mobile and creat wifi hotspot to update.
U can try updating. But in cause some thing break you may have to unlock your bootloader.
And is nougut available for xt1575?
Yes, Nougat is now available for some regions. How can i create a hotspot if te phone does not have WiFi? Can not connect to any network
NamelessGhoulx said:
Yes, Nougat is now available for some regions. How can i create a hotspot if te phone does not have WiFi? Can not connect to any network
Click to expand...
Click to collapse
Oh,right forgot about that.
You can use nougut update zip for xt1575 (if available i couldn't find any)
Or flash is the last option.(i don't know any other fix).
Do you have adb and fastboot in your pc?
No. I'm totally new, I do not understand practically anything
NamelessGhoulx said:
No. I'm totally new, I do not understand practically anything
Click to expand...
Click to collapse
Alright, you are going to want to download minimal fastboot and adb drivers for PC (assuming you are on windows?) https://forum.xda-developers.com/showthread.php?t=2317790&page=70 You do not need an unlocked bootloader or need to be rooted to be able to flash stock. @yk1999 provided the correct file, and so just Google how to flash the commands @yk1999 said. Or follow this guide of how to relock bootloader.
https://forum.xda-developers.com/mo...rn-to-stock-relock-bootloader-t3489110/page33
Edit : the commands are fastboot flash...and then the file names that @yk1999 posted. This should be enough. Download the file I linked you for fastboot and adb, turn on us debugging in settings, and then flash away!
NamelessGhoulx said:
No. I'm totally new, I do not understand practically anything
Click to expand...
Click to collapse
Install adb
Goto bootloader
Connect your usb cable to pc
Press enter after writing each line
fastboot flash modem non-hlos.bin(path to non-hlos.bin)
fastboot flash fsg fsg(path to fsg)
fastboot erase modemst1
fastboot erase modemst2
fastboot erase cache
fastboot reboot
Thanks to both of you. I do not need the drivers of the phone?
NamelessGhoulx said:
Thanks to both of you. I do not need the drivers of the phone?
Click to expand...
Click to collapse
Drivers are included with adb but you can install Motorola device manager it will also install drivers. Search it on Google.
Many thanks to both, I could solve it. They really saved me, I do not know how to thank them

A2017G @B08 -> no network connection

Hi!
Really need your help
I flashed my phone and sold it.
Now customer claimed no network connection and sent it back.
Today I checked the phone and saw, that no IMEI were present.
I restored the IMEI, but there is no network connection.
I flashed the OEM ZTE image and have no clue what else could help.
Any idea?
Is this maybe MODEM related?
Sui77 said:
Is this maybe MODEM related?
Click to expand...
Click to collapse
Yeah, just flash the corresponding modem file
Choose an username... said:
Yeah, just flash the corresponding modem file
Click to expand...
Click to collapse
Flashed the A2017G-N-Modem ---> No success
Sui77 said:
Flashed the A2017G-N-Modem ---> No success
Click to expand...
Click to collapse
I don't know. Maybe a screenshot or two of *#*#4636#*#* would be helpful. This is a shot in the dark though

			
				
Are you 100% sure it is a a2017g?
joaste said:
Are you 100% sure it is a a2017g?
Click to expand...
Click to collapse
Was bevore flashing and was brandnew, sticker states also A2017G
joaste said:
Are you 100% sure it is a a2017g?
Click to expand...
Click to collapse
well that's also something worth looking, just see on the back of the phone if it says a2017g. i just assumed you would be sure
Sui77 said:
Was bevore flashing and was brandnew, sticker states also A2017G
Click to expand...
Click to collapse
I would try reflashing the modem, making sure you're using the latest twrp 3.1.1 and that system is mounted before flashing.
joaste said:
I would try reflashing the modem, making sure you're using the latest twrp 3.1.1 and that system is mounted before flashing.
Click to expand...
Click to collapse
No success
I think there is an issue with the IMEI.
I have restored them, but maybe still broken
Sui77 said:
No success
I think there is an issue with the IMEI.
I have restored them, but maybe still broken
Click to expand...
Click to collapse
Sorry. Can't help you there. I have no experience with restoring IMEIs and resulting issues.
Good luck.
my baseband is another
i use an A2017G stock
https://www.pic-upload.de/view-34346603/Screenshot_2017-11-22-11-27-05.jpg.html
I sometimes get problems just after flashing, and GSM/Wifi 5Ghz take up to 5 minutes to initialize. Deactivating and reactivating the sim card helps. Did u try that?
- Else, I'd get a 7.1.1 factory image and start over, that baseband is *exactly* the same as mine and I only have that "5-minutes-without-wifi-and-network" bug.
- Try looking for wifi just after booting the phone : if you only see 2.4Ghz networks and no 5Ghz network, just turn the sim car off and on, and it's ok, just that bug.
reflash a full stock firmware, if you have imei, you must have then, then if you want, do the process again to get twrp
Hi Folks,
i've done some reading and my problem is a broken EFS sector due to TWRP recovery.
Even after manual IMEI restore, the EFS is broken and causes the no service issue:
https://forum.xda-developers.com/axon-7/how-to/investigation-recovering-efs-twrp-t3522171
Only option is to get a EFS copy from another device, push it on my one and change the IMEI to my own manually.
If efs was ’restored’ using the signed twrp used for unlocking then there is no fix for that.

Mi A1 Wifi Issue after flashing stock ROM

Greetings!
I have been using Resurrection Remix for about a month now, but when the stock April patch came, I decided to return to stock firmware. I downloaded the most recent flash package from the official Xiaomi site and flashed it via MiFlash. When the phone booted up, I could see every wireless network, but when I chose to connect to any of them, the signal dropped a bit and it said "Connecting..." then immediately "Saved". After a few automatic try, it would just say "Disabled". The router settings are just fine, the phone could connect to it before I flashed stock rom. I also tried to download a bit older patch (9.5.4), which was neither good. After it I tried Nougat, but it still won't connect to the network. The hardware must be fine, since it was working an hour ago with Resurrection Remix. Could anyone help me out? Thank you in advance!
EDIT: Solved. The problem was with the persist partition, which is not flashed during the firmware flash process, so you have to flash it separately in TWRP. You'll have to download THIS FILE (persist.img), move it to /sdcard of your device, then boot to TWRP (you don't have to flash TWRP, only boot in it), tap on "Advanced" -> "Terminal", then type in the following: "dd if=/sdcard/persist.img of=/dev/block/mmcblk0p27". After it, reboot the phone into fastboot mode, and flash the firmware again. That's all.
Wifi works, but sim = 0
coda00 said:
Greetings!
I have been using Resurrection Remix for about a month now, but when the stock April patch came, I decided to return to stock firmware. I downloaded the most recent flash package from the official Xiaomi site and flashed it via MiFlash. When the phone booted up, I could see every wireless network, but when I chose to connect to any of them, the signal dropped a bit and it said "Connecting..." then immediately "Saved". After a few automatic try, it would just say "Disabled". The router settings are just fine, the phone could connect to it before I flashed stock rom. I also tried to download a bit older patch (9.5.4), which was neither good. After it I tried Nougat, but it still won't connect to the network. The hardware must be fine, since it was working an hour ago with Resurrection Remix. Could anyone help me out? Thank you in advance!
EDIT: Solved. The problem was with the persist partition, which is not flashed during the firmware flash process, so you have to flash it separately in TWRP. You'll have to download THIS FILE (persist.img), move it to /sdcard of your device, then boot to TWRP (you don't have to flash TWRP, only boot in it), tap on "Advanced" -> "Terminal", then type in the following: "dd if=/sdcard/persist.img of=/dev/block/mmcblk0p27". After it, reboot the phone into fastboot mode, and flash the firmware again. That's all.
Click to expand...
Click to collapse
Thank you soo very much. you are the best, I followed your instructions step by step and my phone wifi is working as charm. my phone is alive now. Thanks a ton again.
-Bimlesh
colegui said:
Wifi works, but sim = 0
Click to expand...
Click to collapse
Have you figured out a way to fix this?
My SIM does not work either, but WiFi is AOK after flashing persist.img
dmbardal said:
Have you figured out a way to fix this?
My SIM does not work either, but WiFi is AOK after flashing persist.img
Click to expand...
Click to collapse
I'm trying some methods but I have not luck yet.
colegui said:
I'm trying some methods but I have not luck yet.
Click to expand...
Click to collapse
I managed to fix the WiFi and SIM (no imei).
Just flash persist.img if you only have the WiFi-issue.
There's a somewhat complicated guide here in the forums as well. Just google "mi a1 imei fix xda".
I'll help you tomorrow if you cant fix it.
dmbardal said:
I managed to fix the WiFi and SIM (no imei).
Just flash persist.img if you only have the WiFi-issue.
There's a somewhat complicated guide here in the forums as well. Just google "mi a1 imei fix xda".
I'll help you tomorrow if you cant fix it.
Click to expand...
Click to collapse
I'm fixing imei downgrade to 7.8.23 and repair imei with rbsoft tool, but when I upgrade to oreo with OTA, imeo=0 again....
I'm trying again other method....https://forum.xda-developers.com/mi-a1/help/efs-partition-eraised-boot-t3753619
dmbardal said:
Have you figured out a way to fix this?
My SIM does not work either, but WiFi is AOK after flashing persist.img
Click to expand...
Click to collapse
Here is solution: : How to restore IMEI permanently after using factory flash
I have the same problem with IMEI, the fix is permanent.
After the repair can be uploaded any rom, including Oreo .
I also twisted up my IMEI. When I tried to downgrade to 7.8.23 it was boot looping. I was trying to solve it for 6 straight hours. Eventually, somehow the phone became unable to boot into fastboot (or anything else) for no reason. (a random shutdown occured during fastboot mode while no command was given). I had to turn to the Xiaomi service, since nothing could be done with the phone. Guess I'll have to use my old nokia flip mobile for 2-3 weeks.
coda00 said:
I also twisted up my IMEI. When I tried to downgrade to 7.8.23 it was boot looping. I was trying to solve it for 6 straight hours. Eventually, somehow the phone became unable to boot into fastboot (or anything else) for no reason. (a random shutdown occured during fastboot mode while no command was given). I had to turn to the Xiaomi service, since nothing could be done with the phone. Guess I'll have to use my old nokia flip mobile for 2-3 weeks.
Click to expand...
Click to collapse
Sorry I cant posting outside links,
You can try EDL mode:
solution how boot EDL mode via ADB or fastboot: link>> 99mediasector.com/edl-mode-boot-edl-mode-xiaomi-devices​I think this will not work for you​But you can try EDL:​via Deep Flash Cable (how quickly make Deep Flash Cable): link>> en.miui.com/thread-310325-1-1.html​or​via disassembly Mi A1 (Guide to Flash Bricked Mi A1): link>> en.miui.com/thread-1680467-1-1.html​
Excellent
Ecoda00
Click to expand...
Click to collapse
amazing bro Thanks, i work fine for me...
coda00 said:
Greetings!
I have been using Resurrection Remix for about a month now, but when the stock April patch came, I decided to return to stock firmware. I downloaded the most recent flash package from the official Xiaomi site and flashed it via MiFlash. When the phone booted up, I could see every wireless network, but when I chose to connect to any of them, the signal dropped a bit and it said "Connecting..." then immediately "Saved". After a few automatic try, it would just say "Disabled". The router settings are just fine, the phone could connect to it before I flashed stock rom. I also tried to download a bit older patch (9.5.4), which was neither good. After it I tried Nougat, but it still won't connect to the network. The hardware must be fine, since it was working an hour ago with Resurrection Remix. Could anyone help me out? Thank you in advance!
EDIT: Solved. The problem was with the persist partition, which is not flashed during the firmware flash process, so you have to flash it separately in TWRP. You'll have to download THIS FILE (persist.img), move it to /sdcard of your device, then boot to TWRP (you don't have to flash TWRP, only boot in it), tap on "Advanced" -> "Terminal", then type in the following: "dd if=/sdcard/persist.img of=/dev/block/mmcblk0p27". After it, reboot the phone into fastboot mode, and flash the firmware again. That's all.
Click to expand...
Click to collapse
Now that my wifi issue is solved, can I delete the persist.img from my device? Please advice.
Mods please edit the op with a warning not to flash someone else's persist partition, this can permanently damage your chances of recovering your OEM Mac address and other sensors data, there's already a better solution out the called "persist resurrector" on XDA. !!!!DO NOT USE THIS!!!
pooniaprashant said:
Mods please edit the op with a warning not to flash someone else's persist partition, this can permanently damage your chances of recovering your OEM Mac address and other sensors data, there's already a better solution out the called "persist resurrector" on XDA. !!!!DO NOT USE THIS!!!
Click to expand...
Click to collapse
Great, so now im tired of resurrection rom, want to go back stock, and since i didn't backup previously my persist img, i'm done with wifi?
seriously, why did i flashed the damn rom. What options do i have now? (thanks for the warning)
---------- Post added at 21:14 ---------- Previous post was at 20:15 ----------
pooniaprashant said:
Mods please edit the op with a warning not to flash someone else's persist partition, this can permanently damage your chances of recovering your OEM Mac address and other sensors data, there's already a better solution out the called "persist resurrector" on XDA. !!!!DO NOT USE THIS!!!
Click to expand...
Click to collapse
Oh man, thank you so so much!! I used Persist Resurrector. and i'm back on wifi. really, thanks so much!!!!
amithiel said:
Great, so now im tired of resurrection rom, want to go back stock, and since i didn't backup previously my persist img, i'm done with wifi?
seriously, why did i flashed the damn rom. What options do i have now? (thanks for the warning)
---------- Post added at 21:14 ---------- Previous post was at 20:15 ----------
Oh man, thank you so so much!! I used Persist Resurrector. and i'm back on wifi. really, thanks so much!!!!
Click to expand...
Click to collapse
Can you please let me know the steps you did with Persist Resurrector or the link which has the steps? Thanks!
Bimlesh1681 said:
Can you please let me know the steps you did with Persist Resurrector or the link which has the steps? Thanks!
Click to expand...
Click to collapse
Sure, here you go: https://forum.xda-developers.com/mi-a1/how-to/tool-persist-resurrector-v1-0-0-0-t3781095
Edit: But you need to have you original persist file
Thank you so much, Bro. You saved my day. I am getting the similar problem. And ended up flashing multiple ROMs. but nothing worked out until I found your post.
i used this tool to solve wifi issue.
while using this tool make sure you enable USB debugging or it won't work.
coda00 said:
Greetings!
I have been using Resurrection Remix for about a month now, but when the stock April patch came, I decided to return to stock firmware. I downloaded the most recent flash package from the official Xiaomi site and flashed it via MiFlash. When the phone booted up, I could see every wireless network, but when I chose to connect to any of them, the signal dropped a bit and it said "Connecting..." then immediately "Saved". After a few automatic try, it would just say "Disabled". The router settings are just fine, the phone could connect to it before I flashed stock rom. I also tried to download a bit older patch (9.5.4), which was neither good. After it I tried Nougat, but it still won't connect to the network. The hardware must be fine, since it was working an hour ago with Resurrection Remix. Could anyone help me out? Thank you in advance!
EDIT: Solved. The problem was with the persist partition, which is not flashed during the firmware flash process, so you have to flash it separately in TWRP. You'll have to download THIS FILE (persist.img), move it to /sdcard of your device, then boot to TWRP (you don't have to flash TWRP, only boot in it), tap on "Advanced" -> "Terminal", then type in the following: "dd if=/sdcard/persist.img of=/dev/block/mmcblk0p27". After it, reboot the phone into fastboot mode, and flash the firmware again. That's all.
Click to expand...
Click to collapse
I am on TWRP and using custom ROM( DOT OS). DO I have to go to fastboot and flash the firmware?
infuerano said:
I am on TWRP and using custom ROM( DOT OS). DO I have to go to fastboot and flash the firmware?
Click to expand...
Click to collapse
try flashing the latest void kernel.

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