Welcome to XDA

Search to go directly to your device's forum

Register an account

Unlock full posting privileges

Ask a question

No registration required
Post Reply

[Q] Can't downgrade modem

OP nodyarg

28th April 2014, 02:27 AM   |  #1  
OP Senior Member
Flag Toronto
Thanks Meter: 9
 
191 posts
Join Date:Joined: Jul 2009
More
I have an i747m with a 4.3 bootloader. I rooted and installed custom recovery, and a 4.1.1 rom. But whenever I try to install a modem version lower than 4.3 i get a "no network" symbol. I have even tried wiping everything and using stock 4.1.1 odin images for the i747m but no luck. So far i have tried the following CWM flashable modems from this thread:
[MODEM] Complete Modem List for both I747U & I747M


I747MVLLE8: modem_CWM_I747MVLLE8.zip - 19.42 MB - May 8th, 2012 (original shipped)
I747MLALH1: modem_CWM_I747MLALH1.zip - 19.62 MB - August 1st, 2012
I747MVLLH1: modem_CWM_I747MVLLH1.zip - 19.46 MB - August 1st, 2012
I747MUMALJ1: modem_CWM_I747MUMALJ1.zip - 19.48 MB - October 1st, 2012
I747MUMBLK3: modem_CWM_I747MUMBLK3.zip - 18.97 MB - November 3rd, 2012
I747MVLDLK4: modem_CWM_I747MVLDLK4.zip - 18.92 MB - November 4th, 2012
I747MUMBLL1: modem_CWM_I747MUMBLL1.zip - 18.97 MB - December 1st, 2012
I747MVLDMF1: modem_CWM_I747MVLDMF1.zip - 18.99 MB - June 1st, 2013
I747MVLUEMK5: modem_CWM_I747MVLUEMK5.zip - 19.17 MB - November 5th, 2013

The only one that works is the last one. It's 4.3.
28th April 2014, 04:13 AM   |  #2  
audit13's Avatar
Senior Member
Toronto
Thanks Meter: 854
 
3,011 posts
Join Date:Joined: Jun 2012
More
The 4.3 bootloader requires the latest modern. There is no way to use an older modem. This applies to the i747 too.
The Following User Says Thank You to audit13 For This Useful Post: [ View ]
28th April 2014, 04:38 AM   |  #3  
OP Senior Member
Flag Toronto
Thanks Meter: 9
 
191 posts
Join Date:Joined: Jul 2009
More
Quote:
Originally Posted by audit13

The 4.3 bootloader requires the latest modern. There is no way to use an older modem. This applies to the i747 too.

samsung are ****ing assholes
28th April 2014, 12:33 PM   |  #4  
audit13's Avatar
Senior Member
Toronto
Thanks Meter: 854
 
3,011 posts
Join Date:Joined: Jun 2012
More
Why do you want to downgrade the modem?
Post Reply Subscribe to Thread
Previous Thread Next Thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes