[Q] bootloader samsung sgh i747 - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

Hi, everyone. I have a problem with my at&t phone.
I demolished bootloader file and phone bricked out. Then I installed boatloads on ad card (16 GB) and switched on my phone. I upgraded it to android 4.4.2 and installed modem file UCUFNE4 for my device. But phone don't switch on without sd card with bootloader inside. Please help me and sorry for my English, I'm from sunny Uzbekistan))

When you booted up from the sd card, how did you update to 4.4.2? Ive got a bad feeling it didnt fully update and you ended with the 4.4.2 modem on 4.3 firmware. If that is the case, there is currently no fix for that.

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Hello, i havea rooted lg e980 on metro pcs running on jellybean 4.1.2 which ive been trying to upgrade for some time, only to get the phone not registered message, i put a friends att sim card, and it started to upgrade, but once it finished it restarted my phone and said phone is rooted, i am somewhat of a noob so i am not too familiar with some terms so anyhelp would be greatly appreciated

SIM unlocking T999L

Hey I recently got an S 3 on the T-Mobile network, and need to switch over to Verizon. I've looked around on here for different SIM unlocking methods, and just had a few questions:
1 can I just flash a Verizon ROM onto the phone in order to use my Verizon SIM card on it? (Something tells me this is a no)
2 if the above is not possible, and I have to get an unlock code, will I still be able to use a cyanogenmod ROM, or would I have to revert back to a stock ROM?
Thanks for your patience! Sorry if this a dumb question or if I posted in the wrong place!
I'm running:
TWRP 2.8.6.0
CM 12.1 d2tmo
SGH -T999L
If the phone is running a 4.1.1 or 4.1.2 bootloader, you could be flashed to stock 4.1.1 and sim unlocked using the free method. After unlocking, I would run ota updates until, the phone is running the latest stock rom. Once updated, I would install twrp and flash a stock rom.
If the phone is running a 4.3 or newer bootloader, it would be best to be running a stock rom in order to enter the unlock code.

Unlocked carrier Note 3 N900T(4.4.2) upgrade to Lollipop

I downloaded Odin and an N9005 firmware( i think) is it compatible on N900T? the phone(T-mobile) is unlocked here in the PH unfortunately i didnt have the chance to see what the technician did or the software he used in his computer. since my phone was modified i wasnt able to upgrade it through the phone itself.
will my phone be able to remain unlocked if the custom OS install is successful?
use the tmobile stock 5.0 rom on sammobile.com for the note 3/sm-900t

[Help] Unbricking GS3 and Installing Stock Firmware

I had bought a GS3 a few years back but never used it. Had some carrier issues as all the SIMs here in India were not supported. Ever since I bricked my Moto E, I decided to start using it again.
I realised that the sticker on the rear of my phone says it's I9300 (International Version) of the S3 but the firmware and bootloader in downloader mode shows it as SGH-747 which I believe is the d2att device. I decided to try and flash the I9300 bootloader and flash the I9300 firmware using Odin to sort my carrier network issues (modem difference issues maybe). Ended up causing a hard brick on my phone didn't turn on properly.
I used the bootloader debrick image from: https://androidfilehost.com/?fid=23501681358549813 and was able to boot my phone into download mode. I assume it's the I747 image which helped me turned on my phone although the battery and rear panel says it's I9300. Nevertheless, I downloaded the 4.0.4 firmware from AndroidMTK.com to flash on my bootloader to completely debrick the device. Downloaded the I747 as the debrick I downloaded earlier bootloader is I747 one.
I tried flashing the firmware and get the below error:
Code:
WARRANTY BIT: 1
BOOTLOADER AP SWREV: 3
SW REV CHECK FAIL: Fused 3 > Binary 0
Is my bootloader a Kitkat Bootloader? Am I flashing the wrong firmware? Should I flash the 4.4.2 firmware and see if it works? Would really appreciate if anyone could guide me here. I really want to unbrick my phone.
I can access my TWRP by using the debrick image from a SD Card. I tried booting into TWRP and Flashing CM 12.1, Lineage 14.1 and Slim 6. I have previously used these three roms on the device. Now, they won't boot after getting installed. I'm stuck at bootlogo when rebooting. Would appreciate any help.
Can anyone help out with this?
Are you able to determine the model # with the phone in download mode?
Since there is mention of "warranty bit", the phone must be running a 4.3 or newer bootloader which cannot be downgraded.
AT&T never released a full Odin-flashable firmware after 4.1.1.
audit13 said:
Are you able to determine the model # with the phone in download mode?
Since there is mention of "warranty bit", the phone must be running a 4.3 or newer bootloader which cannot be downgraded.
AT&T never released a full Odin-flashable firmware after 4.1.1.
Click to expand...
Click to collapse
The phone model is the SGH-747. It's the AT&T variant. Which firmware should I flash then?
Flash this: https://forum.xda-developers.com/ga...ile-sgh-i747ucufne4v4-4-2attall-odin-t3305899

Help: Samsung G965U update

Hello,
I currently have a AT&T factory unlocked G965U build R16NW.G965USQU3ARG7 on T-Mobile. Yesterday I popped an activated AT&T SIM card to update the device to Pie and had no luck. Can I download the latest version PPR1.180610.011.G965USQU3CSAB and install it via ODIN or do I need to do an incremental upgrade. I tried updated to R16NW.G965USQS3ARG8 via SD card sideload and got an “error 7”, I do not care about the data on the phone. Should I only use ODIN? Thanks for your help.

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