weird problem with HTC M8

[Android Central Question]

I have a weird problem with HTC M8. phone dialer, people and tv apps stopped working and show "com.htc.htcdialer stopped unexpected" error.

I tried reset factory with no luck. the only way I found is changing from dalvik to art. but if I reset factory, problem come again. I need to fix it because I want to pass it to others and they may want to reset phone.

 

[mustang7757]

Hi, welcome to Android Forums

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https://forums.androidcentral.com/showthread.php?t=409154

 

[mustang7757]

Have you tried safe mode?

 

[maxidev]

Have you tried safe mode?

Hi!
yes I tried safe mode and problem continue.

 

[Rukbat]

You're going to have to reflash the ROM. See How to update / change / repair Firmware in HTC One M8 by RUU mode for full instructions, links to the files you'll need and the ROMs.

 

[maxidev]

You're going to have to reflash the ROM. See How to update / change / repair Firmware in HTC One M8 by RUU mode for full instructions, links to the files you'll need and the ROMs.

tried several and I got: "remote 12 signature verify fail" when flash.
could you give me for this or tell me how fix that?