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Root Deleted cw Cache _cannot reboot

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Hey @Arc_Eus, just a quick pop-in here...I just wanted to point-out what the issue is with your flashing command in post #26 above (I haven't looked at the XDA link you provided in post #27 above).

The correct syntax is actually:

sudo fastboot flash recovery <recovery-image-file>​

(the generic syntax for the fasboot flash command is fastboot flash <partition> <bootable-image-file> and in your case you're wanting/trying to flash the TWRP custom recovery to the recovery partition using the bootable recovery image /home/batman/Desktop/twrp-2.8.7.0-m8.img)

So, I'm guessing you'll want to do this:

sudo fastboot flash recovery /home/batman/Desktop/twrp-2.8.7.0-m8.img​

Don't want to hijack what the others might be having you do, but I wanted to point-out this common boo-boo :).

Cheers and best of luck!
 
@Arc_Eus See you're making progress and have tapped in to the right place on xda. If you want to get TWRP installed that's fine, but at some point you'll need to confirm what firmware version you have. If it's an older version and you flash a newer Marshmallow ROM there will likely be some stuff that breaks - Wifi is probably most common. With that in mind if you can do the 'fastboot getvar all' command - I'm guessing the command needs to be:

sudo fastboot getvar all

and post the results except your IMEI and Serial numbers (Edit : I don't know if you have to be su in Linux to run all fastboot commands though, since I'm windoze :D ).

I can then let you know you're good to flash any ROM, or if you need to update firmware first.
 
Progress !!
batman@unix:~$ sudo fastboot getvar all
[sudo] password for batman:
< waiting for device >
(bootloader) version: 0.5
(bootloader) version-bootloader: 3.19.0.0000
(bootloader) version-baseband: 1.12.20.1211
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 4.17.605.9
(bootloader) version-misc: PVT SHIP S-OFF
(bootloader) serialno:
(bootloader) imei:
(bootloader) imei2:
(bootloader) meid:
(bootloader) product: m8_wlv
(bootloader) platform: hTCBmsm8974
(bootloader) modelid:
(bootloader) cidnum: VZW__001
(bootloader) battery-status: good
(bootloader) battery-voltage: 0mV
(bootloader) partition-layout: Generic
(bootloader) security: off
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: 66da6304
(bootloader)
(bootloader)
all: Done!
finished. total time: 0.017s
 
Last edited:
Ok, the version-main number shows you have firmware for Android 5.x.x (lollipop) - a search should probably confirm the exact version. It means if you are looking to flash a 6.x.x (Marshmallow) based ROM, you will need to update the firmware first. You need to do this is in a specific mode launched via fastboot and I can point you to a helpful guide covering the instructions, but you need to make sure you source a specific VZW firmware package. I have to admit in the xda thread I found it's not 100% clear on what's contained in some of the zips/exes but I think the zip RUU in this thread is what you are after:

http://forum.xda-developers.com/verizon-htc-one-m8/general/official-ruu1-55-605-2-t2883845

you would want the first link under where is says Downloads. You will need to do this via the 'fastboot oem rebootRUU' mode as the exe will be for Win users.

Read the post carefully a few times to make sure you understand how to do this, and do check the md5checksum of anything you download as you really don't want to flash a corrupt firmware package.

With the bootloader version (3.19.0.0000) you should be ok, no need to update this first.

If in any doubt, come back and ask first - we'll be around at some point.
 
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