12 Signature verify fail - HTC one m8 ,not rooted, s-on, relocked

[sooraj752]

I tried to flash via fastboot but it says 12 signature phone. I want to repair my htc one m8 as it does not shows imei , baseband . but it shows when fastboot getvar all. what is the problem? My phone doesn't support any sim cards.

 

[lucyr03]

I tried to flash via fastboot but it says 12 signature phone. I want to repair my htc one m8 as it does not shows imei , baseband . but it shows when fastboot getvar all. what is the problem? My phone doesn't support any sim cards.

First we need to know more about your device.
Do "fastboot getvar all" and post the result here(remove sn,imei)

Sent from my OnePlus 2 using XDA Labs

 

[sooraj752]

screenshot info

First we need to know more about your device.
Do "fastboot getvar all" and post the result here(remove sn,imei)

Sent from my OnePlus 2 using XDA Labs

the info is:
< waiting for device >
(bootloader) version: 0.5
(bootloader) version-bootloader: 3.19.0.0000
(bootloader) version-baseband: [email protected]
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 6.20.502.5
(bootloader) version-misc: PVT SHIP S-ON
(bootloader) serialno:
(bootloader) imei:
(bootloader) imei2: Not Support
(bootloader) meid: 00000000000000
(bootloader) product: m8_ul_ca
(bootloader) platform: hTCBmsm8974
(bootloader) modelid: 0P6B12000
(bootloader) cidnum: CWS__001
(bootloader) battery-status: good
(bootloader) battery-voltage: 0mV
(bootloader) partition-layout: Generic
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: 205bdca3
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
all: Done!
finished. total time: 0.661s


Here it shows imei also.but not inside phone. even *#06# returns null imei.and baseband is also showing unknown. I just updated the rom to marshmallow via ruu update . but still my sim is locked.the phone doesn't recognises any sim card. any help is highly appreciated.

 

[lucyr03]

the info is:
< waiting for device >
(bootloader) version: 0.5
(bootloader) version-bootloader: 3.19.0.0000
(bootloader) version-baseband: [email protected]
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 6.20.502.5
(bootloader) version-misc: PVT SHIP S-ON
(bootloader) serialno:
(bootloader) imei:
(bootloader) imei2: Not Support
(bootloader) meid: 00000000000000
(bootloader) product: m8_ul_ca
(bootloader) platform: hTCBmsm8974
(bootloader) modelid: 0P6B12000
(bootloader) cidnum: CWS__001
(bootloader) battery-status: good
(bootloader) battery-voltage: 0mV
(bootloader) partition-layout: Generic
(bootloader) security: on
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: 205bdca3
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
all: Done!
finished. total time: 0.661s


Here it shows imei also.but not inside phone. even *#06# returns null imei.and baseband is also showing unknown. I just updated the rom to marshmallow via ruu update . but still my sim is locked.the phone doesn't recognises any sim card. any help is highly appreciated.

I'm not sure if this ruu is signed but you can give it a try.
https://androidfilehost.com/?fid=962021903579495285

Sent from my OnePlus 2 using XDA Labs

 

[redpoint73]

I just updated the rom to marshmallow via ruu update . but still my sim is locked.the phone doesn't recognises any sim card. any help is highly appreciated.

So you ran the RUU, and the original question is no longer relevant?

You have the AT&T version M8, which is SIM locked by default. Was it SIM unlocked before at any time? It's not clear from what you have described so far.

 

[hnammad7]

(bootloader) security: on > nead to unlock

so your device may be LOCK or RELOCK > you need to UNLOCK again to Flash TWRP