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[Q] HTC one (un-rooted) reboots randomly & loops

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By rabazrubuz, Junior Member on 20th April 2014, 07:55 AM
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I´ve got a HTC one (un-rooted, factory default), bought without a contract at MediaMarkt in Stockholm/Sweden, that has started rebooting itself randomly, and when it comes into the OS it doesnt seem to boot correctly.

It often skips the PIN-code and I can access the phone, but it will not connect to my cellphone network-provider (it shows the 5 bars with an X-symbol).
I can still connect to my wifi at home and access all (I havnt tried all, but most) of the apps.

When i go into "search for available networks" it says it cant be done because of an unexpected failure.

It often, but not always, asks me if I want to send a failure-report to HTC.

Sometimes the phone sits like this for hours, but usually it takes about 30-40 sec, then it reboots itself without any prompt. Usually into the same mode and it can keep on rebooting itself for 5-20 times before finally asking me for a PIN number and starting up normally.

I´ve tried starting in Safe Mode and still get the same issue.

I found a simular post here, although I have never rooted my HTC one:

Any ideas to what might be causing this?

INFOversion: 0.5
INFOversion-bootloader: 1.56.0000
INFOversion-baseband: 4A.25.3263.21
INFOversion-cpld: None
INFOversion-microp: None
INFOversion-main: 4.19.401.11
INFOversion-misc: PVT SHIP S-ON
INFOserialno: HT35YW909601
INFOimei: ***********************
INFOmeid: 00000000000000
INFOproduct: m7_ul
INFOplatform: HBOOT-8064
INFOmodelid: PN0710000
INFOcidnum: HTC__Y13
INFObattery-status: good
INFObattery-voltage: 4252mV
INFOpartition-layout: Generic
INFOsecurity: on
INFObuild-mode: SHIP
INFOcommitno-bootloader: dirty-4dab9d12
INFOhbootpreupdate: 11
INFOgencheckpt: 0
all: Done!
finished. total time: 0.041s

Went into the log file that my phone generates for HTC
And it reads:
[1708152] ramdump_show_rst_msg: KP: subsystem_restart_wq_func [de756080]: failed to power up external_modem! [1709565]

Any additional info needed?

best regards

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