[Q] [q] help!!!! IMEI and BaseBand unknown after custom ROM flash

nathanyang0428 · Feb 20, 2014

I am new here and wish to get help from XDA.
I just got a unlocked Samsung Galaxy S3 (SGH-I747) and inserted my Rogers sim card. The phone came with 4.1.1 and everything was good and I root it. Then I found that I have 4.3 update. I updated to 4.3 (I747UCUEMJB) via OTA and root it again by CF_auto_root. The only issue was the phone always boot up and show " Unfortunately,SuperSU has stopped". However, I did get the root after reinstall supersu.apk. So far so good till last night.

Last night I tried a custom ROM and flash it via ODIN. I got failed and I got the following from ODIN

<ID:0/004> Added!!
<ID:0/004> Odin v.3 engine (ID:4)..
<ID:0/004> File analysis..
<ID:0/004> SetupConnection..
<ID:0/004> Initialzation..
<ID:0/004> Get PIT for mapping..
<ID:0/004> Firmware update start..
<ID:0/004> cache.img.ext4
<ID:0/004> NAND Write Start!!
<ID:0/004> NON-HLOS.bin
<ID:0/004> persist.img.ext4
<ID:0/004> system.img.ext4
<ID:0/004> aboot.mbn
<ID:0/004> FAIL! (Auth)
<OSM> All threads completed. (succeed 0 / failed 1)

and the following error from the phone.

SW REV CHECK FAIL: Fused 2 > Binary 0

After I boot the phone up, I found that the phone lost IMEI and baseband (should be I747UCUEMJB). The Build version changed from JSS15J.I747UCUEMJB to JSS15J.I747UCUEMJ2. Now I could not go to either Rogers network or Wifi.

What is the solution for this? ( I do not have efs backup but I write down some information such as IMEI)

I am thinking to flash stock AT&T 4.3 I747UCUEMJB might be the best solution, but I could not find it?

I have downloaded set of Rogers 4.3 (I747MVLUEMK5), may I flash them in to build a pure Rogers S3?

audit13 · Feb 20, 2014

Does your phone boot to its desktop? If it does, try flashing an updated modem in recovery.

The MJB is for the i747 from AT&T. You have an AT&T phone?

nathanyang0428 · Feb 20, 2014

audit13 said:
Does your phone boot to its desktop? If it does, try flashing an updated modem in recovery.

The MJB is for the i747 from AT&T. You have an AT&T phone?

Yes. It is an AT&T GS3 (i747). the phone is able to boot up to its desktop.

Now I am working on the CMW flash, then I will reflash the modem.

nathanyang0428 · Feb 21, 2014

I have installed CWM recovery and flashed the Modem (I747UCUEMJB). After reboot, my GS3 could go to Rogers network! Great!

But the issue is, the WIFI could not be activated. I tried to click (to enable) WIFI in setting but NOTHING happened.

Because WIFI is so important to a phone, any one has some idea on how to fix this WIFI issue?

audit13 · Feb 21, 2014

Is your bootloader an mj2 or mjb?

Maybe try another modem from here: http://xdaforums.com/showthread.php?t=1831898

nathanyang0428 · Feb 21, 2014

audit13 said:
Is your bootloader an mj2 or mjb?

Maybe try another modem from here: http://xdaforums.com/showthread.php?t=1831898

This is exactly where I downloaded the modem file (I747UCUEMJB).

After flash Modem file I747UCUEMJB, I found that my Build number is still JSS15J.I747UCUEMJ2(Orignally it should be JSS15J.I747UCUEMJB)

How could I check the bootloader version? Thanks.

nathanyang0428 · Feb 21, 2014

Does a Factory reset could be helpful and worth to try? whether Factory reset would eliminate my Root?

nathanyang0428 · Feb 21, 2014

audit13 said:
Is your bootloader an mj2 or mjb?

Maybe try another modem from here: http://xdaforums.com/showthread.php?t=1831898

I have checked my phone.

Bootloader and Phone are I747UCUEMJB
PDA and CSC are I747UCUEMJ2

I have reflashed again with the I747UCUEMJB modem but still not luck. Wifi is still disabled, as I checked by *#*#4636#*#*

audit13 · Feb 21, 2014

Does your phone have a WiFi mac address?

nathanyang0428 · Feb 21, 2014

audit13 said:
Does your phone have a WiFi mac address?

Yes. the WIFI MAC address is correct and unchanged.

nathanyang0428 · Feb 21, 2014

Finally I proved that Factory Reset is a WRONG choice. I did Factory Reset and I lost my LTE connectivty (I was still able to go to GSM network with voice), the Wifi issue was still there!

Luckily, I did a backup by CWM so I restore it. Now I rollback to the old status (LTE works, Wifi still no luck).

nathanyang0428 · Feb 22, 2014

Any idea how to fix the Wifi disable issue? I am not sure that the wifi is in part of Modem, or PDA, or CSC?

audit13 · Feb 22, 2014

There is a CSC file on http://www.sammobile.com/firmwares/. Not sure if that would help.

karmasblade · Feb 22, 2014

nathanyang0428 said:
Finally I proved that Factory Reset is a WRONG choice. I did Factory Reset and I lost my LTE connectivty (I was still able to go to GSM network with voice), the Wifi issue was still there!

Luckily, I did a backup by CWM so I restore it. Now I rollback to the old status (LTE works, Wifi still no luck).

Sorry but I cannot help in this situation but I had a similar problem. My LTE was gone after I manually entered my IMEI in after it was lost... I have no LTE still, but everything is fine. Do you have any idea on how to get it back?

nathanyang0428 · Feb 22, 2014

karmasblade said:
Sorry but I cannot help in this situation but I had a similar problem. My LTE was gone after I manually entered my IMEI in after it was lost... I have no LTE still, but everything is fine. Do you have any idea on how to get it back?

First of all, which phone you have? if you have I9300, the there is no LTE funtion.

Secod, Are you sure you have LTE on your sim card? Not every sim card was provisioned with LTE function.

Third, if you say yes for both 2 questions above, dial *#2263# to check your preferene. I put it Automatic, so if LTE network avalable, my phone will go to LTE.

Hope this help.

karmasblade · Feb 22, 2014

nathanyang0428 said:
First of all, which phone you have? if you have I9300, the there is no LTE funtion.

Secod, Are you sure you have LTE on your sim card? Not every sim card was provisioned with LTE function.

Third, if you say yes for both 2 questions above, dial *#2263# to check your preferene. I put it Automatic, so if LTE network avalable, my phone will go to LTE.

Hope this help.

I have an i747M, Same as the AT&T Variant. I should have said that I got strong LTE connections before losing my IMEI. Now if I change it to the LTE network, it shows LTE but there's no internet connection. Also, with that network setting, I get about 1 or 2 bars constantly compared to 4 bars on 4G... And yes my sim is LTE. As I said, it worked fine before. Got any tips?

nathanyang0428 · Feb 22, 2014

Then you might need to check your APN setting. It could be lost.

BTW: please open a new post for your issue. I am still waiting for someone who could give me some hints to fix my wifi disable issue.

karmasblade · Feb 22, 2014

Have you tried flashing stock?

Sent from my SAMSUNG-SGH-I747 using xda app-developers app

nathanyang0428 · Feb 22, 2014

I could not find stock rom for I747UCUEMJB. Where could I download it?

nathanyang0428 · Feb 24, 2014

Issue was fixed by reinstall stock ROM I747UCUEMJB http://xdaforums.com/showthread.php?t=2658486&page=5

[Q] [q] help!!!! IMEI and BaseBand unknown after custom ROM flash

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