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Dear Friend, thanks for fast answer. I have two problems:
a) 16 days ago, I installed Rootjoy, connected my phone and it worked fine, except that when I tried to check for new firmware, rootjoy said, "your device is not recognized by now." In all information it refers to UMI ZERO. Perhaps do you have a rootjoy for Iron Pro?
b) I left the program and proceeded to install TWRP via telephone using "Rashr". The process ended well and after the restart, I had access to TWRP recovery. Immediately I made a full backup of the firmware and save it on the external card and in the Pc.
After several days of use (5 or 6 days), the phone began to be unstable. I tried to restore the backup made earlier and for that, I rebooted into recovery mode, I made the recommended wipe and proceeded to "restore" option. A half process, the system indicated that the copy was defective and caused an unexpected restart.
The phone does not restart again and did not accept charge the battery. I waited several days, with the phone idle, with no external card without sims.
At the 3rd day, I reinstalled again rom V3.01 downloaded from Umidigi and everything returned to normal, just that I can not install the TWRP recovery and eventually, text editors and other programs, do not have access to save files in the phone memory.
I think the recovery is not well and therefore, there have been various problems, not only on my phone, also with other users.
I suggest you see the possibility that Umi, help us with this matter.
Thank you for your help.
Happy New Year 2016.
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