[Mcoul15]

I'm not able to cheik my IMEI

now i noticed you have ATT, ATT hosts their firmwares on their server. you can try contacting their support team or check the ATT forum if they'll send the firmware link

also ensure to properly verify the model of your phone, i cant find amy such ATT H901, there's only ATT H900 or TMO H901
if you confirm yours is ATT H900, the firmware is listed @ https://storagecow.eu/index.php?dir=Xda%...6T+H900%2F

other options you have
check with octoplus support team if they have firmware for your exact model in their download area (this will not be free though)

It's H901
Ok, I'm going to contact them!

[Mcoul15]

Hello everyone
I'm happy to inform you that the phone has started.
I did not want to restart it again, and I do not know what to do to backup the system.
I attach 2 screenshots so that you can give me advice.

[X3non]

Hello everyone
I'm happy to inform you that the phone has started.
I did not want to restart it again, and I do not know what to do to backup the system.
I attach 2 screenshots so that you can give me advice.

i thought you mentioned you phone was ATT H901, but your screenshot shows it H900
you can download the firmware and use that in place of backup

[Mcoul15]

Hello everyone
I'm happy to inform you that the phone has started.
I did not want to restart it again, and I do not know what to do to backup the system.
I attach 2 screenshots so that you can give me advice.

i thought you mentioned you phone was ATT H901, but your screenshot shows it H900
you can download the firmware and use that in place of backup

in the device about it's H900, but beneath the battery it's H901

[X3non]

in the device about it's H900, but beneath the battery it's H901

that's understandable, good thing is you're now sure of the right model H900

[Mcoul15]

in the device about it's H900, but beneath the battery it's H901

that's understandable, good thing is you're now sure of the right model H900

that's right but, where can I find the firmware and flash? if possible the rooted Rom

[X3non]

that's right but, where can I find the firmware and flash? if possible the rooted Rom

check the storagecow link i sent previously

[Mcoul15]

that's right but, where can I find the firmware and flash? if possible the rooted Rom

check the storagecow link i sent previously

After sending some media by xender the problem has persisted again.
I do not know even if the problem is hardware or firmware.
the screen remains stuck for a while and restarts.

[X3non]

After sending some media by xender the problem has persisted again.
I do not know even if the problem is hardware or firmware.
the screen remains stuck for a while and restarts.

flash stock rom then check if the problem still persists

[Mcoul15]

After sending some media by xender the problem has persisted again.
I do not know even if the problem is hardware or firmware.
the screen remains stuck for a while and restarts.

flash stock rom then check if the problem still persists

 I'll keep you informed