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Hi my ex phone (jiayu s3 3gb) that now belongs to my brother is stuck on boot loop It is running on the RC4 ROM (5.1) what you recomend me to do reinstal the ROM or is it past the point of that? thanks Jaxon

charge your battery ,, do factory reset in recovery mode by pressing power button + volume up dont wipe all data ,, only system you can backup your files in recovery mode if you added SD Card by going to file management

finally i advice you to flash 5.1 RC5 ROM ,,, its more stable good luck