Tuesday, April 5, 2016

Stuck at "Fastboot Mode!!!" Screen - Fastboot works, ADB doesn't

I've searched this and other forums, and tried virtually everything that has been suggested or that I can think of.

I have a Zenfone 2 Laser ZE551ML rooted. Phone has worked like a dream. Installed TWRP 3.0, made and saved several backups in several different places, internally and externally.

Two days ago, flashed a TWRP recovery (I was looking to get back some data I had deleted inadvertently), seemed to go well until it booted, and could not get past the screen that says "Fastboot Mode!!!". Connected to a PC and was able to execute fastboot commands; supposedly can flash various recoveries, and seemingly does so, with everything looking right on the PC, and the phone actually rebooting. But always stops at the same screen.

ADB, on the other hand, shows no devices listed. Every command results in "Error: Missing Device."

I have done everything I can think of...uninstalled and reinstalled the ADB drivers, used different ADB drivers, removed the external SD card, removed the battery (which is the ONLY way the phone will shut off...pressing the on/off button for 10 seconds just results in it booting up to the same screen. Have tried the fastboot wipe command, again it seems to do so, but always comes back to the same screen. Fastboot flashing a recovery.img appears to successfully write a recovery, then goes to same screen upon reboot.

Any ideas? I've only had this phone a couple of weeks, and really like it. But flashing what was apparently a bad TWRP backup seems to have destroyed it.

Thanks so much for any suggestions!


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