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[Q] Bootlooping, unrooted GT-i9305n

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BloomTwig
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Default [Q] Bootlooping, unrooted GT-i9305n

Hello,

I have been asked to help a relative to fix his sgs3 that have never been rooted and is boot-looping. I can access download mode, and I figure just using Odin to flash stock rom on to it would fix it. Or at least might. I have a few questions:

The phone is bought in Sweden and might be sim locked. Will this pose a problem? Furthermore, how will I find the correct stock rom to flash (from Odin)
Are there anything else I need to consider? All I have worked with is my sgs4 that I have rooted and sorta messed up and fixed my self. Now I don't know exactly what has happened and I just want to do some basic resurrection atempts.

Any and all suggestions are greatly appreciated!

Best regards,
BloomTwig
Using:
ASUS TF700T (Infinity) running CROMi-Xenogenesis
Samsung Galaxy S4 (SGH-I337M) running ALPHA S4

In retirement:
HTC One X running InsertCoin
HTC Incredible S running IceCold Sandwich
Sony Ericsson x10 mini, unrooted.
 
Smedslund
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The sims lock will not be a problem. I have a carrier locked device and it's rooted.

If you speak Swedish and want help. Send me a PM and I will help you out.

Sent from my GT-I9305 using Tapatalk

Phone :Samsung GT-i9305n (LTE)
Recovery: TRWP 2.7
Kernel version: OMNI Boeffla 2.3 beta7 by hbohd
Rom: Spirit rom
Modem: XXUEMK1

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spiderman07
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try to enter stock recovery(volume up + home +power) and do a factory reset + wipe cache....
if this doesn't solve the problem, flash the firmware for your country...get it from samfirmware.com....
after flash it you might still get a bootloop...enter stock recovery and do a factory reset and wipe cache...now it will definetly work...
firmwares from samfirmware.com are official and don't trip knox counter(if it has it)...
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