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bootloop on stuck rom

28th August 2014, 08:14 PM |#1  
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hello,

I buyed a htc one m7. Its inner hardware is untouched, the rom is stock 4.3.
It was never rooted or something.

It stucks in a bootloop, vol-down+power for recovery does work, I can do a hard recovery reset, but it doesnt solve the error.
sometimes it starts the rom after 30 minutes bootloop, but not often. Now it does bootloop for 3 hours.

Hboot 1.55
Locked

No warranty because no copy of the invoice.

Any ideas?


http://bayimg.com/iaADaaagB
Last edited by packyman; 28th August 2014 at 08:21 PM.
 
 
28th August 2014, 08:29 PM |#2  
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Quote:
Originally Posted by packyman

hello,

I buyed a htc one m7. Its inner hardware is untouched, the rom is stock 4.3.
It was never rooted or something.

It stucks in a bootloop, vol-down+power for recovery does work, I can do a hard recovery reset, but it doesnt solve the error.
sometimes it starts the rom after 30 minutes bootloop, but not often. Now it does bootloop for 3 hours.

Hboot 1.55
Locked

No warranty because no copy of the invoice.

Any ideas?

did the phone ever work ?
do you know how to use fastboot to erase the cache ?
have you powered the phone completely off by holding the power button + volume down for 10 - 15 seconds under a bright light?
28th August 2014, 09:02 PM |#3  
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Thanks for reply.

I tried fastboot erase cache, done. But no change.
I do shutdown with vol down and bright light on sensor. No change.

I dont know, if its worked before, I buied it on ebay.
28th August 2014, 10:59 PM |#4  
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Quote:
Originally Posted by packyman

Thanks for reply.

I tried fastboot erase cache, done. But no change.
I do shutdown with vol down and bright light on sensor. No change.

I dont know, if its worked before, I buied it on ebay.

Can you post a fastboot getvar all (excluding imei and serialno)? Maybe, there is a RUU that you can run.
29th August 2014, 10:08 AM |#5  
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I unlocked now the bootloader and installed twrp recovery. I go into fastboot and select recovery, then it restarts and says: entering recovery. but theres no recovery coming, only old bootlop I only wanted to make an backup.
fastboot erase cache doesnt help

Code:
c:\adb>fastboot getvar all
(bootloader) version: 0.5
(bootloader) version-bootloader: 1.55.0000
(bootloader) version-baseband: 4A.22.3263.03
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 3.63.111.3
(bootloader) version-misc: PVT SHIP S-ON
(bootloader) serialno: HT35EWxxxxxx
(bootloader) imei: 3xxxxxxxxxxxxxx
(bootloader) meid: 00000000000000
(bootloader) product: m7_ul
(bootloader) platform: HBOOT-8064
(bootloader) modelid: PN0710000
(bootloader) cidnum: T-MOB101
(bootloader) battery-status: good
(bootloader) battery-voltage: 3725mV
(bootloader) partition-layout: Generic
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: dirty-d2906a15
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
all: Done!
finished. total time: 0.047s
Last edited by packyman; 29th August 2014 at 10:35 AM.
30th August 2014, 11:18 AM |#6  
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So I found the problem. The usb flex was maybe faulty and couldnt charge the accu.
I had another htc one m7 here, so I changed the accu and now all is okay. nicely, the usb flex seems to be okay. But the accu was to empty to charge (I had the htc one day on the wall charger and display showed the charge symbol).

So, its solved!
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