No Mobile Data or SIM Signal ZB570TL X018D Chinese Version - Asus Zenfone Max Questions & Answers

For those who are having problems of signal lost after flashing firmware on ZB570TL X018D that has no update, try looking on this thread.
https://forum.xda-developers.com/android/general/rom-asus-zenfone-max-plus-m1-google-apps-t3900039
maybe it helps.

Related

N9005 flash the N9005XXUFNF2 modem ,then cann't use 4G (LTE)

N9005 flash the N9005XXUFNF2 modem ,then cann't use 4G (LTE),even selcect the "LTE Only model" and seach the LTE networks.
Dear all
I encountered a big issue,
My N9005 is Hongkong version.
when i flash the newest modem version N9005XXUFNF2,
then I can not use 4G LTE ,but i used it before.
Even I flash back the N9005ZHUENF1,the issue is the same.
Other two guys also encountered the same issue,
it is the commom issue.
It seems like the "N9005XXUFNF2_Modem" has the 4G Lock,that make the LTE fuction disable.
I cann't selcect the "LTE only" model,
In the seivicemode ,
I cann't selcect any LTE Band,all disabled .
In Mobile networks setting ,if i select the "LTE/WCDMA/GSM" as network mode.
and use manual search networks,only can seach 3G and 2G networks,no LTE networks.
I try a lots of way to solve that, but no works.
So I want get help from you.
Thanks
I think I have the same problem. Before flashing the exact same modem I had 4G in my house. After I have NOTHING. Only 3G.
I have tried flashing other modems, but some of them gives me unknown baseband and unknown imei.
But when I go downtown I can get 4G again, but not in my house.
Have you tried seeing if you can get 4g coverage anywhere at all?
/CK
I tried lots of times,
try different sim card,different place,
because in my home,other phones have 4G signal,
but n9005 even cannot search the 4G networks!
AFAIK, you can't flash a Un-China ROM if you are using China device. (Same thing in Un-China devices, we can't flash China firmware stuff it will probably end up with hardbrick or IMEI lost). Hong Kong ROMs are different from others.
no,I didnot flash note3 Chinese ROM,
the Chinese note3 versions are different from others.
I just flash the European version .
Because i flashed European baseband of n9005 ,than encountered this issue.
pls,help me!
nforce4 said:
pls,help me!
Click to expand...
Click to collapse
pls,help

[Q] Signal Issue on N9100

I am having signal issues with the n9100 (china mobile). Currently I am in Canada on Rogers network. I have rooted the phone and currently using a custom Rom (Aurora). The firmware is on 5.1.1 and baseband is on the latest. I do get 4G signal but it gets weak when I am inside my house and usually is in Edge mode. The signal was decent when I was in China. I am sure its a modem issue, but is it possible to install a rogers modem onto this without bricking (probably lose dual sim but thats ok)? If not, is there a fix? Can I force my phone to use a certain frequency/band that Rogers uses and see if that helps?

x821 with LTE Band 20. Can i flash Chinese ROM + flash Indian Modem for LTE Band 20

Hi,
i'm unsure it this will work fine if I flash Chines ROM and afterwards flash Indian / Russian Modem to give me the option for LTE Band 20.
Thanks Guys
The support for LTE Band 20 (or any other band) is not in the firmware file, but on a hardware level. No modem firmware will enable/disable any band. If you don't have support for B20 no firmware file will magically activate it, and if you have B20 support (which x821 has) flashing a Chinese ROM with a Chinese modem firmware won't deactivate it, either. Just try the different firmware files and choose the one that works best with your phone.
jman0 said:
The support for LTE Band 20 (or any other band) is not in the firmware file, but on a hardware level. No modem firmware will enable/disable any band. If you don't have support for B20 no firmware file will magically activate it, and if you have B20 support (which x821 has) flashing a Chinese ROM with a Chinese modem firmware won't deactivate it, either. Just try the different firmware files and choose the one that works best with your phone.
Click to expand...
Click to collapse
Hi,
on CM14.1 i got no LTE Reception only after flashing indian Modem i got reception without changing anything in the Settings... any explenation for that
Cheers
supernannywast said:
Hi,
on CM14.1 i got no LTE Reception only after flashing indian Modem i got reception without changing anything in the Settings... any explenation for that
Cheers
Click to expand...
Click to collapse
On any LineageOS based ROM I got way poorer reception than on any EUI based ROM, and I have tried all the modems, Indian, Chinese, Russian, Development, etc. Never stopped getting LTE reception, regardless the installed modem firmware.

No service in g5 plus Indian Variant

Hi recently I flashed a custom ROM and due some issues I came back to twrp flasheable stock rom 7.0 (latest on April security).
After flashing the stock rom I have found that my phone is not able to catch the signal . I thought my imei was broken but in system status imei was present and everything looks fine but showing no service and signal strength also nil.
I have tried various sim cards in my phone and none of them worked in catching signal. All of them showing no service and no signal at all.
Please help me if anyone know how to fix this issue, as I use this phone as daily basis.
I have restored my phones efs, persist backup but no use.
I am using Indian Variant Moto g5 plus...

VS995 weak or no signal in Europe

Hello. I have unlocked Verizon V20 VS995 and I am in Europe. In the urban areas phone works fine with all frequencies, also 4G B3 and B20 frequency, but when I go just outside town it looses network. Any sugestions?
CDMA LGV20 will suffer with those issues in Europe. So just switching to a native LTE/GSM device is the only way...
But I can't understand why the sognal is so weak when phone supports all the frequencies in my country. I even changed antennas (plastic bumpers) but still the same result.
Simple explanation - it is not a HW issue - the root cause is combination of your modem firmware and stock ROM you are using as the LTE/GSM band usage is set to be with lower priority and the modem constantly searches for the CDMA signal firstly...
So, is there anything to fix this? Maybe flash another rom or modem, if I find somehow to root stock Oreo.
If you are in VS995 really (and please check the sticker indication under your battery for that it should state VS995 only without Sat the end) you can roll back to Nougat via kdz flash and unlock the bootloader via DirtySanta, flash custom recovery and flash afterwards AOSP/LOS based roms.
I think I have VS995 because before ota upgrade to Oreo I have installed few KDZ's from the link without any problem. Can you tell me how can I check ARB version of Oreo?
All Verizon ROMS including Oreo are ARB00
Also you might try flashing Oreo Alpha Omega Hybrid ROM firstly and if not happy than try RR roms...
Tried Alpha Omega ans Lineage 15.1 and the situation is the same. Poor signal strenght.
scytalemk said:
Tried Alpha Omega ans Lineage 15.1 and the situation is the same. Poor signal strenght.
Click to expand...
Click to collapse
Hi, did you find an answer? I have same problem... shame, lovely phone...
try use it without phone covers... it will get more bars lol

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