Disclaimer: This is simply a thread to try and post viable solutions to help people struggling with 4G. I am not responsible for you bricking and/or damaging your phone. However I have personally tried all these methods (except the last one) successfully and have not had any ill effects from them.
Ok so I am going to post this thread as a solution thread for all the people that have been struggling with 4G (like myself) and have found solutions to restoring 4G permanently.
IMPORTANT: YOU MUST BE S-OFF TO ACCOMPLISH MOST IF NOT ALL OF THE SOLUTIONS LISTED HERE.
Update!!!!!!!
After starting the thread on possible solutions I found the simplest one that I have now tried multiple times on all ruus and the ics leak and it works on ALL OF THEM. Funny thing is that it is the simplest solution of all... It has been reported a couple of times now by different users I just tested it out intensively on all combinations. The steps are:
1. Relock your phone (Optional - I am in a habit of doing this step regardless due to an RUU failing on me while being unlocked)
2. Use a ruu to reformat your phone and restore
3. Then reboot into bootloader and DO A FACTORY RESET.
4. Reboot and enjoy full 4g
Have no idea why it never occurred to me to do this but I can verify no 4g drops on any combination of rom I have tried after those steps are completed... As long as you don't DOWN MIX AND MATCH FIRMWARE AND RADIOS. I have gone 6 hours straight no drop all 4g. Try and report back...
Thanks to whoever posted the find
___________________________________________________
Scenario # 1 - You have had perfect 4G service even after you performed s-off until you flashed this (http://forum.xda-developers.com/showthread.php?t=1614366) or this (http://forum.xda-developers.com/showthread.php?t=1612555) and now are losing 4G permanently and/or fluctuating. Here is two solutions that I have found worked so far... both have been tested to work on my phone however every phone is different so I cant speak for everyone.
Note: This solution is assuming that, like me, you have tried every RUU and hard flash method available and still are experiencing drops in your 4G
I re-locked my phone prior to performing any RUU's and/or starting any of these solutions
Solution # 1 - Download this GB RUU (http://www.mediafire.com/?v6d2kxspn9t14) and run the exe on a windows pc to perform a full restore (on a windows 7 64bit system I had to run it in compatibility mode to make it work - Windows XP service pack 2 & run as administrator). After this boot up the phone and verify that your 4G is still dropping. Proceed to unlock your boot-loader and flash a custom recovery (custom recovery is optional but it is a step i completed before continuing the process that worked for me). Then download this (http://forum.xda-developers.com/attachment.php?attachmentid=1017864&d=1335048263) and flash it in the Hboot. It will install the engineering version of Hboot for GB. Reboot phone back to bootloader and verify that the Hboot was flashed successively. After reboot your phone normally and verify that the 4G drops have been fixed.
On this solution I have been running 5 hours without a single drop so far. I feel that the Hboot directly related to s-off somehow affects the 4G radio. Just a hunch...
Solution # 2 - Same scenario as above but you want to go to the ICS leak instead of the GB RUU. I have found two different methods for this solution that works just as well as the one above.... so far.
Method a) Download GB RUU (http://www.mediafire.com/?v6d2kxspn9t14) and install like described above. Then download the ISC leak (http://bit.ly/IzGIFF) and flash it from Hboot. After these two things have been completed flash the official modded s-off Hboot (http://dl.dropbox.com/u/14779955/jb_hboot.zip) and reboot bootloader to verify that it is indeed the new Hboot. Then restart the phone and verify the 4G drops have been fixed. If 4G still drops then download the GB radios (posted below) and extract them into a folder containing your fastboot files on your computer. Boot into fastboot on your phone and type these commands from a command window ran from inside your folder :
fastboot erase mdm9k
fastboot erase radio
fastboot flash mdm9k mdm9k.img
fastboot flash radio radio.img
Verify that all four steps go successively and then reboot your phone. Verify 4G does not drop
Note: Using the last portion of this process I now have no drops on ICS.
THIS NEXT METHOD WAS TESTED BY ANOTHER PERSON AND VERIFIED THAT IT WORKED TO FIX 4G.
Method b) Download old GB RUU (http://www.mediafire.com/?24rwfff4nfe1j) and install like described above. Then download the ISC leak (http://bit.ly/IzGIFF) and flash it from Hboot. Then flash the 2.01.605.11 radios to replace the ICS ones (the links to the radio packages are listed below). Reboot to Hboot and verify that the radios are now the GB ones. Reboot and verify that 4G drops have been fixed.
These are all the solutions I have so far. Please let me know your results as well as any additional methods you find to fixing 4G drops and I will update the OP.
Happy 4G fixing
Here are the radio packages (thanks to flyhalf 205 for re-posting) to attempt solution 2 method b which is verified by him
GB Radio:http://www.mediafire.com/?6s86jwmers710o5
ICS Radio: http://www.mediafire.com/?xvu8g3ucfwzit48
Credits : graymonkey44 (s-off files), uToTMeH8 (RUU files), con247/jcase (engineering Hboot for GB), lllboredlll (used his link for the ICS leak), Flyhalf205 (for posting Solution 2 Method b and verifying), nolimitzr2 (for originally posting radio packages), jefffeely (for posting the hard erase & write method to this thread), and anyone else im forgetting.
If this helps in any way feel free to throw a thanks my way
Ok so I am going to post this thread as a solution thread for all the people that have been struggling with 4G (like myself) and have found solutions to restoring 4G permanently.
IMPORTANT: YOU MUST BE S-OFF TO ACCOMPLISH MOST IF NOT ALL OF THE SOLUTIONS LISTED HERE.
Update!!!!!!!
After starting the thread on possible solutions I found the simplest one that I have now tried multiple times on all ruus and the ics leak and it works on ALL OF THEM. Funny thing is that it is the simplest solution of all... It has been reported a couple of times now by different users I just tested it out intensively on all combinations. The steps are:
1. Relock your phone (Optional - I am in a habit of doing this step regardless due to an RUU failing on me while being unlocked)
2. Use a ruu to reformat your phone and restore
3. Then reboot into bootloader and DO A FACTORY RESET.
4. Reboot and enjoy full 4g
Have no idea why it never occurred to me to do this but I can verify no 4g drops on any combination of rom I have tried after those steps are completed... As long as you don't DOWN MIX AND MATCH FIRMWARE AND RADIOS. I have gone 6 hours straight no drop all 4g. Try and report back...
Thanks to whoever posted the find
___________________________________________________
Scenario # 1 - You have had perfect 4G service even after you performed s-off until you flashed this (http://forum.xda-developers.com/showthread.php?t=1614366) or this (http://forum.xda-developers.com/showthread.php?t=1612555) and now are losing 4G permanently and/or fluctuating. Here is two solutions that I have found worked so far... both have been tested to work on my phone however every phone is different so I cant speak for everyone.
Note: This solution is assuming that, like me, you have tried every RUU and hard flash method available and still are experiencing drops in your 4G
I re-locked my phone prior to performing any RUU's and/or starting any of these solutions
Solution # 1 - Download this GB RUU (http://www.mediafire.com/?v6d2kxspn9t14) and run the exe on a windows pc to perform a full restore (on a windows 7 64bit system I had to run it in compatibility mode to make it work - Windows XP service pack 2 & run as administrator). After this boot up the phone and verify that your 4G is still dropping. Proceed to unlock your boot-loader and flash a custom recovery (custom recovery is optional but it is a step i completed before continuing the process that worked for me). Then download this (http://forum.xda-developers.com/attachment.php?attachmentid=1017864&d=1335048263) and flash it in the Hboot. It will install the engineering version of Hboot for GB. Reboot phone back to bootloader and verify that the Hboot was flashed successively. After reboot your phone normally and verify that the 4G drops have been fixed.
On this solution I have been running 5 hours without a single drop so far. I feel that the Hboot directly related to s-off somehow affects the 4G radio. Just a hunch...
Solution # 2 - Same scenario as above but you want to go to the ICS leak instead of the GB RUU. I have found two different methods for this solution that works just as well as the one above.... so far.
Method a) Download GB RUU (http://www.mediafire.com/?v6d2kxspn9t14) and install like described above. Then download the ISC leak (http://bit.ly/IzGIFF) and flash it from Hboot. After these two things have been completed flash the official modded s-off Hboot (http://dl.dropbox.com/u/14779955/jb_hboot.zip) and reboot bootloader to verify that it is indeed the new Hboot. Then restart the phone and verify the 4G drops have been fixed. If 4G still drops then download the GB radios (posted below) and extract them into a folder containing your fastboot files on your computer. Boot into fastboot on your phone and type these commands from a command window ran from inside your folder :
fastboot erase mdm9k
fastboot erase radio
fastboot flash mdm9k mdm9k.img
fastboot flash radio radio.img
Verify that all four steps go successively and then reboot your phone. Verify 4G does not drop
Note: Using the last portion of this process I now have no drops on ICS.
THIS NEXT METHOD WAS TESTED BY ANOTHER PERSON AND VERIFIED THAT IT WORKED TO FIX 4G.
Method b) Download old GB RUU (http://www.mediafire.com/?24rwfff4nfe1j) and install like described above. Then download the ISC leak (http://bit.ly/IzGIFF) and flash it from Hboot. Then flash the 2.01.605.11 radios to replace the ICS ones (the links to the radio packages are listed below). Reboot to Hboot and verify that the radios are now the GB ones. Reboot and verify that 4G drops have been fixed.
These are all the solutions I have so far. Please let me know your results as well as any additional methods you find to fixing 4G drops and I will update the OP.
Happy 4G fixing
Here are the radio packages (thanks to flyhalf 205 for re-posting) to attempt solution 2 method b which is verified by him
GB Radio:http://www.mediafire.com/?6s86jwmers710o5
ICS Radio: http://www.mediafire.com/?xvu8g3ucfwzit48
Credits : graymonkey44 (s-off files), uToTMeH8 (RUU files), con247/jcase (engineering Hboot for GB), lllboredlll (used his link for the ICS leak), Flyhalf205 (for posting Solution 2 Method b and verifying), nolimitzr2 (for originally posting radio packages), jefffeely (for posting the hard erase & write method to this thread), and anyone else im forgetting.
If this helps in any way feel free to throw a thanks my way
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