Problem with LTE connection after flashing a custom Rom. - Xiaomi Redmi 3s Questions & Answers

Hi guys,
I flashed custom rom (Pixel Experience) and everything works very well and stable.
However, I have one problem with this Rom, LTE doesn't work at all (only 3G/HSPA+).
I tried to flash soft again without success. I also tried to upload FireHound Rom also lack of LTE.
Even when I try to force it by a command *#*#4636#*#* there is no signal, though I'm in LTE range.
On the stock Rom I had no problem with LTE.
Does anyone have a similar problem?
How can I fix it?
Thank you so much for help guys.

Check your apn settings & set your prefered network on 4g or LTE

Related

[Q] KRT16M OMNI 4.4 for GEEB (E970/E971/E973) problem with LTE

Hi
I´ve just flashed this rom, and everything seemed to be good. But after a few hours mobile Network keeps changing to 3g from 4g. Then i can manually change it Again but right after it goes back to 3g.
Is there a LTE-fix to this rom or have i done anything wrong....?
Regards
Kongees

[Q] LTE gone after custom rom

Hi friends, I am new at this hopefully someone can help me...
I installed the newest version of the goldeneye rom for my Canadian Rogers based S4...
all is running smooth but my LTE is now showing 4g, I checked my APN settings which are 100% fine..
can anyone advise me how to fix this problem..
Thanks
rajan9612 said:
Hi friends, I am new at this hopefully someone can help me...
I installed the newest version of the goldeneye rom for my Canadian Rogers based S4...
all is running smooth but my LTE is now showing 4g, I checked my APN settings which are 100% fine..
can anyone advise me how to fix this problem..
Thanks
Click to expand...
Click to collapse
LTE = 4G. And no is a problem. 4G/LTE (Fourth Generation / Long Term Evolution) is the next stage in mobile network development and provides users with much faster data speeds than 3G is able to. Custom Rom Creator can build 4g icon or LTE icon but its same

[Q] I9505. No signal when using 3G/4G. 2G works

Hi.
After updating Danvh's lolipop-rom to the latest version, I lost my signal and wifi. When I force my phone to use 2G (GSM only) in network-settings, everyting works normal.
But of cource I want the speed of 3G and 4G when using internet!
Sometimes (not often) 3G works.
Sometimes the phone says it has signal, but calls, internett etc don't work
I tried to flash the latest modem (XXUHOC6), but no luck. Have also tried modem XXUGNK4, XXUHOB8 and XXUHOB7. I tried to go back to the older version of the custom rom, but no luck
I have now downloaded the latest official stock rom from sammobile. But same problem with stock rom.
Any suggestions?
I have IMEI
Sorry, I have the same problem and I am still searching for a solution. And I have been trying everything as you and no solution. Sometimes I think is a hardware issue.
Very frustrating :S
Hope to find a solution soon.
I dont want to buy a new phone yet. There is no other phones out there that I want

MI A1 Network fluctuation with custom ROM

Hey Folks, as we all know how stock ROM sucks, I remained on custom ROM to max extend. But sadly I have to revert to stock due to network fluctuation issues. I use Jio as my primary and Airtel in SLOT 2. Fluctuation is widely seen in slot 1 which is reported by many others as well in respective ROM thread.
I have tried methods flashing custom modem image and network signal guru. But none seems to fix the case.
Anyone aware of other methods to fix the network fluctuation issues seen in custom ROMs? May be using any custom kernel?
Please help me to remain in custom ROM!
Cheers,
Hari.
Same here all cust rom has this network fluctuation issue and it is to do with the code. It seems if any one can fix this. It will be great..
haariseshu said:
Hey Folks, as we all know how stock ROM sucks, I remained on custom ROM to max extend. But sadly I have to revert to stock due to network fluctuation issues. I use Jio as my primary and Airtel in SLOT 2. Fluctuation is widely seen in slot 1 which is reported by many others as well in respective ROM thread.
I have tried methods flashing custom modem image and network signal guru. But none seems to fix the case.
Anyone aware of other methods to fix the network fluctuation issues seen in custom ROMs? May be using any custom kernel?
Please help me to remain in custom ROM!
Cheers,
Hari.
Click to expand...
Click to collapse
The same, please helppppppppppppppppp!!!!
Noticed the same on Vodafone AU, no matter what network mode I set it to. Even on 3G only I get drop outs and fluctuations.
I'm hoping it's just some extra modem related package or service missing from the vendor blobs, but I've not had time to look into it yet (with my limited skills in this area).
For me also lot of fluctuations. Sometimes totally black signal bar. Hope somebody can fix it. I fixt it for now with automate and set network to 2g when on wifi and after lock screen when I am on mobile network.
Modem zip in forum don't solve it for me and also lock some bands with signal guru didn't do the trick.
Hope somebody can solve it a lot of people are suffering this problem.
daveve said:
For me also lot of fluctuations. Sometimes totally black signal bar. Hope somebody can fix it. I fixt it for now with automate and set network to 2g when on wifi and after lock screen when I am on mobile network.
Modem zip in forum don't solve it for me and also lock some bands with signal guru didn't do the trick.
Hope somebody can solve it a lot of people are suffering this problem.
Click to expand...
Click to collapse
Has anyone tried using custom kernel? Just curious on if any custom kernel fix this.
Same issue I have been facing, I had re-partitioned my device for Treble using CosmicDan's guide so that I can try all the best custom roms out there and get all updates as they are released but when I faced this issue, I had no choice but to revert back to Android One rom, undoing all the process
haariseshu said:
Has anyone tried using custom kernel? Just curious on if any custom kernel fix this.
Click to expand...
Click to collapse
Nope change kernel don't solve network problems it has something to do with the modem.
https://forum.xda-developers.com/mi...nel-r1-android-8-0-beta-t3758768/post76859233
Bump
Sent from my epic G900F (CM11, [emoji173]️ Holo Dark) Gadget of Mass Destruction using Tapatalk.
What is weird is sometimes network stable when updated the rom... And goes back fluctuated the next update...
awandroid89 said:
What is weird is sometimes network stable when updated the rom... And goes back fluctuated the next update...
Click to expand...
Click to collapse
Probably resetting modem settings, assuming you've made any.
China only uses maybe 5 bands, and most of the population doesn't often travel far from home; so roaming and tower switching isn't an issue. That, and a power management issue I think are responsible for our network issues.
My money is on these devices working perfectly in the motherland.
Faced the same , almost on every custom ROM .Jio 's volte doesn't work most of the time. Switched to January stable stock twrp with magisk . Now everything is stable , no volte issues at all .
Now my question is , the issue is with ROM or modem file ? As you guys are saying that it is a modem issue ..as now I am on January stable modem , I will try to flash a latest build of any custom ROM and will report .
sikoo1996 said:
Faced the same , almost on every custom ROM .Jio 's volte doesn't work most of the time. Switched to January stable stock twrp with magisk . Now everything is stable , no volte issues at all .
Now my question is , the issue is with ROM or modem file ? As you guys are saying that it is a modem issue ..as now I am on January stable modem , I will try to flash a latest build of any custom ROM and will report .
Click to expand...
Click to collapse
Can you post January modem file twrp flash able?
kemdroid said:
Can you post January modem file twrp flash able?
Click to expand...
Click to collapse
There's a TWRP flashable May modem patch somewhere in the MiA1 forum. I've flashed it and the results aren't perfect, but circumstances have improved.
I have tried all March, April and May modems and all have problems with custom ROMs and network fluctuations for me. (IND Airtel operator) and even 3G is fluctuating with state owned BSNL. January is the only one I haven't tried which I will after getting a reply from sikoo1996.
I have very limited knowledge of these matters and so far all my attempts with dialer code menu or settings or Network Guru have all failed. Guess I will ditch this phone and stick to my S5.
Sent from my epic G900F (CM11, [emoji173]️ Holo Dark) Gadget of Mass Destruction using Tapatalk.
kemdroid said:
Can you post January modem file twrp flash able?
Click to expand...
Click to collapse
I flashed sooti's stock twrp zip (which includes modem), I don't know if it can be made a seperate flashable zip.
---------- Post added at 05:34 AM ---------- Previous post was at 05:33 AM ----------
hnkotnis said:
I have tried all March, April and May modems and all have problems with custom ROMs and network fluctuations for me. (IND Airtel operator) and even 3G is fluctuating with state owned BSNL. January is the only one I haven't tried which I will after getting a reply from sikoo1996.
I have very limited knowledge of these matters and so far all my attempts with dialer code menu or settings or Network Guru have all failed. Guess I will ditch this phone and stick to my S5.
Click to expand...
Click to collapse
Rit now I am on jan stock build , means on Jan modem .I will flash a custom ROM now ..later today and will report back about the issue .
Cheers?
I dunno if it actually works for everyone but,
Swapping the SIM card slot worked for me.
Using RR latest. I also flashed stock modem.img but that didn't fix the problem then. It's fixed now by swapping SIM slot.
Hey guys. Try flashing the latest modem and then, go oh ahead to *#*#4636#*#* and select network mode to TD-SCDMA/CDMA/UMTS . ?
https://forum.xda-developers.com/mi...nel-r1-android-8-0-beta-t3758768/post76886544
As @methuselah pointed out, there is a more appropriate place for this conversion.
Please read through link and respond to this thread.
@flex1911, I'm sorry for straying so far off topic for long. I'll copy and paste necessary posts here asap, Within the day, so that they may be scrapped or deleted there.

No 4g after installing multiple rom on galaxy note 4 N910k

Hi,
I have lost 4g after installing some roms.There is only 3G.When I force to LTE only it shows no service,but 3G works perfectly.I have flashed ltefix.zip, downgrade to stock rom even there is no 4G.
Please help help, I'm just boring of 3G speed .
Khokamoni said:
Hi,
I have lost 4g after installing some roms.There is only 3G.When I force to LTE only it shows no service,but 3G works perfectly.I have flashed ltefix.zip, downgrade to stock rom even there is no 4G.
Please help help, I'm just boring of 3G speed .
Click to expand...
Click to collapse
Try to change some setting from *#*#4636#*#* menu
there is nothing coming by dialing this code.But 4G is enabled in service mode.can you help with another way?

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