Phone only vibrates, no display, no led

[Partha Dhar]

Hello

2 years back I dropped my phone in water.
It recovered though and working properly, but last month I saw sometimes the screen flashes sometime while touching the display.
After someday it is completely dark, the touch was working as I can unlock my phone and receive calls by guessing the positions on my screen, and sometimes it shows the display with a hazy screen. So I tried to order a display to replace, but it was not possible during lockdown.

So I was using this > scrcpy-control-android-on-pc
to backup my things and other, while waiting for the new display.

But then after 2 days the phone was rebooted and goes completely dark.
No led while charging, it only keep restarting (only vibrates as I can not see anything on my screen)

I tried many key combinations >>
vol up + vol down + power : long vibration and blue led
vol down + power: while USB connected to PC fastboot devices appeared

here is the fastboot getvar all

(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) version: 0.5
(bootloader) version-bootloader: moto-msm8953-C0.00(*)
(bootloader) product: kuntao
(bootloader) board: kuntao
(bootloader) secure: yes
(bootloader) hwrev: P3B
(bootloader) radio: 2
(bootloader) storage-type: emmc
(bootloader) emmc: 32GB Samsung REV=08 PRV=07 TYPE=57 PNM=RX14MB
(bootloader) ufs: 32GB Samsung REV=08 PRV=07 TYPE=57 PNM=RX14MB
(bootloader) ram[0]: 3840MB Samsung S8 SDRAM DIE=8Gb M5=x1 M6=x5 M7=x0 M
(bootloader) ram[1]: 8=x5F
(bootloader) cpu: MSM8953
(bootloader) serialno: [STRIKE]Zxxxxxxxxx[/STRIKE]
(bootloader) cid: cid
(bootloader) channelid: no support
(bootloader) uid: [STRIKE]bxxxxxbx0000000[/STRIKE]
(bootloader) unlocked: locked
(bootloader) iswarrantyvoid: iswarrantyvoid
(bootloader) max-download-size: 536870912
(bootloader) reason: no support
(bootloader) imei: [STRIKE]35xxxxxxxxxxxxx[/STRIKE]
(bootloader) meid: 
(bootloader) date: 12-19-2016
(bootloader) sku: P2a42
(bootloader) battid: 
(bootloader) iccid: 
(bootloader) cust_md5: 
(bootloader) max-sparse-size: 268435456
(bootloader) current-time: 
(bootloader) ro.build.fingerprint: 
(bootloader) ro.build.version.full: 
(bootloader) ro.build.version.qcom: 
(bootloader) version-baseband: 
(bootloader) kernel.version: 
(bootloader) sbl1.git: sbl1.git
(bootloader) rpm.git: rpm.git
(bootloader) tz.git: tz.git
(bootloader) aboot.git: aboot.git
(bootloader) qe: unknown
(bootloader) frp-state: frp-state
(bootloader) ro.carrier: 
(bootloader) sv: 2

As you can see the bootloader is locked, I never flashed anything to this device.
So how to recover from this?
Thanks in advance.

 

[mahmutpekkara]

Maybe your phone got into the emergency download mode, try reflash firmware.
Also similar thing happened to me, phone water dropped and vibrates, black screen. I disassembly the phone and dried. It worked. (Also I have same blowned pins, cleared them and it worked, no idea how worked tho)