(HTC M8) Can't access sim pin - One (M8) Q&A, Help & Troubleshooting

hello
i installed on my htc M8 Viperonem8 6.1.0 and after that i have "no service".
the phone doesn't ask me sim pin and can't phone anymore
can someone help me please ?

Hi,
had this long time ago on my HTC ONE S. Try to remove the SIM and flash again the ROM.
Best regards

Thanks
I flashed the rom again' it works until i reboot. When i reboot, no sim again

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HTC Desire GSM SIM unlocking Cyanogenmod 7.1

Hi there,
I'm just after a method for unlocking my HTC Desire GSM without flashing back to a stock ROM.
I'm currently on Vodafone UK and I'd like to use an Orange sim.
My phone is rooted, s-off and running Cyanogen 7.1
I've tried using HTC_Desire_unlock_v0.9.5, which downloaded from somewhere on this site.
But the phone remains emergency calls only with the Orange sim (& a US T-moble sim)
I've got USB debugging on, and I've run the unlock programme from my PC, everything seems to work - the phone reboots in HBOOT and I get the success message in the PC window. I've tried with my Vodafone sim and the Orange one.
I have noticed an error message with both sims on the unlock programme window - Vodafone = returned error 95 and Orange = returned error 31
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Have you tried mentioning this in the sim unlock utility thread? It's the only utility there is
Sent from my HTC Desire using xda premium
restart in flymode
offen this doesnt work reflash. ( do nandbackup) first
Thanks, after much reading of the unlocking thread and installing ADB drivers, restarting lots of times. I'm still not too sure if I've unlocked my phone, as I've realised the Orange sim I was trying has expired - doh.
I've ordered a new one so when that arrives I should be able to determine if I've unlocked it.

[HELP] No SIM Card message error

Hello, I bought my HTC Desire 816 2 days ago from Amazon. I can't seem to get a signal on this thing no matter what I try,
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Hello I have a HTC device desire 816 dual sim ; I've been doing Recovery; his first Unlock the Bootloader device, Second Recovery for your work and went to the back of a black screen show benefit is the work of Recovery other possible way to do Recovery
Hi, welcome it's a bit hard to understand what you're trying to say. I'm guessing you tried to install clockworkmod(CWM) custom recovery but you coudn't. I suggest you try TWRP and see if it works

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HTC Desire 626G Dual sim | HTC EU version 4.4.2 Root Help

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yeah
yes my friend.Yesterday ı have tried to install a custom rom to my HTC Desire 626g dual sim but ı cannot do .Because ı cannot ınstall twrp to my HTC Desire 626g dual sim.Do you know that how i can do this.Please help me!Thanks

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