soft brick or HW failure

david.grundmanndavid.grundmann Level 1
edited September 2020 in ZenFone 6

So I was doing my normal morning routines sitting at table and checking weather quickly then suddenly it just stopped showing a screen. This set of events is exactly how my 5z died... the 6 I could at least hard-reboot

So I went to desperately try to fix to recover at least my authentication codes. What happens is that I can get it started but then dies at random points. Sometimes 5 seconds and other 1 minute. Eventually it just stopped responding to anything. The whole time I had to force reboot with pwr+vol down.

Problem at this point:

Getting a charging light or screen was not happening, no boot screen, no recovery mode.

At some random point I started to get a charging screen, at 92% battery after many,many pwr+vol_down. Then later on started to get into recovery. I did a full wipe in hopes it was software but that did nothing. I downloaded the latest image WW-17.1810.2005.153 for US variant I01_WDX but still nothing (which did a full install just fine without a lockup). Once I got back into a charging screen I let it go to 100% -- mostly because I was at it for a few hours and wanted lunch.

At this point it did boot but was very in-stable. First boot got past setting up wifi. Second got past setting google account. Last I was starting to sync all apps and such from google and all looked really promising then died -- back to the very beginning of not getting any lights/etc.

It almost seems like some kind of power delivery problem or some kind of thermal because when it's in this state i found that being in front of the AC and getting this cold makes it "work" - in that from a dead state I can get it to start showing charging screen (which is now 100%). It's hard to say thermal because it gets warm when it's working and being used when not crashing...

Observations:

Some boots the screen will show asus logo, then zenfone and screen will turn off, but still show zenfone booting, then shortly after will reboot.

I can get a red led but no screen with power in + pwr+vol_down - never gets out...

Phone seems "stable" when in lock screen for first time, after login it dies randomly



I need help, I really want this to be stable again. Is there anyway I can fully load the firmware/boot images manually or figure out why it's crashing/locking?

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