Low 4G signal after rooting/flashing CM4.1.2 then to 4.1.3... - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

Hi all,
I rooted my Rogers S3 then installed with CM4.1.2 last week then updated to 4.1.3. I've noticed since I updated to 4.1.3 that my 4G signal maxes out at 2 bars. So am wondering if the ATT rom that is used has a different baseband file then Rogers? And if so, is it possible to install a Rogers baseband back onto the phone some how?
Thanks...

Pretty sure there is no android 4.1.3 version. And there is a thread with flashable modems u can try...

Related

ATT How to update Radio?

I am having pretty bad battery life and I think it has to do with the radio because BetterBatteryStats said I had no signal for 5 hours over night when I usually have full signal in my house. I am rooted and using the rom JellyBean 747 Milestone 3.5 rom for ATT. There was recently a new OTA update for the stock rom for ATT which came with an updated radio. Looking through the threads I don't see a way to update the radio. Previously on my Inspire 4G I could update the radio to several different options pretty easy.Do i need to flash the stock rom to update the radio?
I believe I found what I was looking for. They are called modems instead of radios. If anyone else runs into this problem
http://forum.xda-developers.com/showthread.php?t=1831898

[Q] best baseband for WIND galaxy nexus jelly bean

Hi
Upgraded to Jelly Bean 4.1.2 using Wugfresh's excellent Toolkit.
Stock baseband that came with the Wind GNex was Android 4.1.1 running UGLH1. After upgrading to 4.1.2 Stock Yakju build, the baseband changes to XXFL1 - which i assume is the same version as ICS.
So far seems reception is fine. Mostly in Toronto North York area I receive 3 bars signal and switching frequently between 3g/HSPA+.
Wondering from fellow Canadian WIND / AWS users if they have experienced any issues using XXFL1 radio baseband on Jelly bean 4.1 or what the best radio to flash is ?
cheers
Mike
Read through this, see what works for others on your carrier in your location. You will get many answers. You will have to test them all to find which one is BEST for YOU. No one else can answer that but you.
http://forum.xda-developers.com/showthread.php?t=1405345

rogers i747M lost LTE after flashed custom rom

I have rooted my rogers i747m and installed [ROM] AOKP(Jellybean 4.2.1 )Task & Ktoonsez (1/13) (AT&T/Rogers) . after couple days of usage, i just noticed I do not have LTE icon anymore.. I have HSPA and 3G instead. Then I flashed [ROM][JB][4.1.1][VLDLK4] Stock SGS3 TouchWiz ROM / Rooted / Debloated (12/06/2012) I got LTE back. these too roms got huge different speed test result on same servers. Would some one tell me why?
sorry for my english... thanx in advance
I think I solved the problem by looking at this post
h3nyr said:
I have rooted my rogers i747m and installed [ROM] AOKP(Jellybean 4.2.1 )Task & Ktoonsez (1/13) (AT&T/Rogers) . after couple days of usage, i just noticed I do not have LTE icon anymore.. I have HSPA and 3G instead. Then I flashed [ROM][JB][4.1.1][VLDLK4] Stock SGS3 TouchWiz ROM / Rooted / Debloated (12/06/2012) I got LTE back. these too roms got huge different speed test result on same servers. Would some one tell me why?
sorry for my english... thanx in advance
Click to expand...
Click to collapse
on AOKP and CM10 roms usualy 4G is LTE i found, but when i have flashed roms in past i have had HSPA and 3G so i too would like to know if there is a modem we can flash etc..
also on rogers 1747m thanks
Make sure your APN is correct. Also, it uses Rogers #1 by default instead of Rogers LTE. So that's another thing to look into.
If both those things still don't fix it, you might have to test different modems.

what modem is best for tmobile network

I unlocked the att note 2 and I'm trying to use it in tmobile. I get 4g but my call signal keeps dropping and it says emeegency calls 9nly from time to time. The signal bars keep dropping out. Im currently running tmobile rom on mk6 4.1.1
i use the official ATT modem that was released with the 4.3 ROM. And use one of the ATT rom as well. Unless you really need Wifi Calling, I think just stick with ATT rom and modem
MK6 or even new 4.4 modem work fine on T-Mobile. I'm using eZkat 2.0 ROM (KitKat 4.4.2) with no call issues.

From AT&T Custome ROM to TMobile Custom ROM?

Hey guys, I have been having more than normal dropped calls and poor signals so I have decided to move to an actual TMobile ROM to match with my T889 phone.
I am coming from an AT&T based SKy Note Air G2 ROM with the MK7 modem and PSN_AGNi_pureSTOCK-v3.9.5_N7105_4.3_AROMA-signed Kernel, I also had to do a WIFI patch because I upgraded from the 4.1.2 BL to avoid Knox issues. I have TWRP back from March this year. I was wondering if I need to do anything special before installing the JEDI ROM.
Any helpful guides to install this ROM? I have checked the ROM page but couldn't get the info I want.
Can changing back to a ROM native to your carrier help with service signal?

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