[SOLVED]IMEI Null , Unknown Baseband - (*update) and recover IMEI
[SOLVED] [temp. fix] IMEI Null , Unknown Baseband Confirmed working with i337 and i337m
I have received an i337 s4 with imei nul/nul and with no baseband (unknown) - see attached pics.
The user stated that he played with some menu from Samsung secret codes.
It's on stock recovery, download mode doesn't show any flash counters, binary and sys status as 'official' and write protection 'enabled'
Also the home screen shows a certain menu with a notification 'update device information' see attached pic.
I have done a factory rest via stock recovery, still showing the same issues.
How can I solve this hopefully?
Thanks to Colonel Sander aka Quasimodem for all the help, here and over hangout.
After having problems with QPST/ EFS pro etc, in repairing, I flashed his efs.img , this removed the home screen error notice and the phone was working normal - still with IMEI = null / null and baseband = unknown
Today he made a flashable zip, which helped me fully flash his efs,
After the flash I got back my baseband
My IMEI has changed from null / null to a 0 / 00 this is not a problem over here, and my network is fully active and amazingly still UNLOCKED.
I would hopefully inject my original IMEI with Z3X box service if I couldn't repair over the QPST and other similar softwares.
I have added the EFS zip, this works confirm with i337 and i337m
But this does NOT work with i9505 (I would not advice to flash it on i9500)
Follow all the procedures before going for a flash.
Thanks to @Quasimodem for the original zip.
UPDATE Feb 24 2014: HOW TO RECOVER IMEI
Unfortunately I do not have the phone myself now, but here is success report of recoveing IMEI after flashing this EFS:
Originally Posted by Ziida
Thanks! Flashing through TWRP didn't do it for me so I installed CWM tonight based on your suggestion and it's worked! My baseband became readable and my IMEI went from "null / null" to "0 / 00"
To anyone else coming into this thread: CWM was a bit of a hassle to install, so I had to use this guide (mind their typos...).
Anyhow, the most exciting part is after flashing the good Captain's EFS file my phone was recognized by QPST again!! I went ahead and flashed the AWS .qcn file from this thread, and now my IMEI number has returned!
I hope you have similar luck, dogmatism!
edit: removed ZIP, as it carries imei number of the original provider after flashing AWS .qcn
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