I'm doing this from a MacBook Air (which I've done the same from previously).
No other devices or plugs connected.
Tried toggling USB debugging.
The zip was extracted by nkk71 using his tool as I couldn't make it work.
The M7 is currently:
(bootloader) version: 0.5
(bootloader) version-bootloader: 1.61.0000
(bootloader) version-baseband: 4T.35.3218.16
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 7.18.531.2
(bootloader) version-misc: PVT SHIP S-OFF
(bootloader) serialno:
(bootloader) imei:
(bootloader) meid: 00000000000000
(bootloader) product: m7_ul
(bootloader) platform: HBOOT-8064
(bootloader) modelid: PN0713000
(bootloader) cidnum: T-MOB010
(bootloader) battery-status: good
(bootloader) battery-voltage: 4321mV
(bootloader) partition-layout: Generic
(bootloader) security: off
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: dirty-331585dd
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0
all: Done!
and the error
Martin:~ fritz$ adb reboot bootloader
Martin:~ fritz$ fastboot oem rebootRUU
...
(bootloader) Start Verify: 0
OKAY [ 0.041s]
finished. total time: 0.041s
Martin:~ fritz$ fastboot flash zip RUU.zip
error: cannot load 'RUU.zip'
"error: cannot load" is because fastboot can't find the file. Make sure the zip is in the same folder where fastboot is. Check for typo in your filename or in you cmd window. Can also be caused by double file extension, not sure if it's the same for mac but on Windows, extension for known file type are not shown. for example in RUU.zip the ".zip" will not be shown. If you renamed the file yourself "ruu.zip" but the file extension was already there but hidden, you'll have double file extension "ruu.zip.zip". Make sure it's not your case.
usb debugging on/off doesn't matter when in fastboot/ruu mode. Only needed to use adb from the booted rom, no effect on fastboot commands neither from adb in recovery.
Did you successfully flashed a 7.xx.xxx.x ruu in the past using your mac or it was an older version? Because, you must use htc_fastboot.exe to flash these versions and i'm not sure there is version of htc_fastboot for mac. The regular fastboot from the android sdk won't work for these version.
---------- Post added at 08:21 AM ---------- Previous post was at 08:15 AM ----------
File is unsigned or wrong signature. Make sure the file isn't corrupted (check md5). Bootloader must be locked or relocked to flash RUU when the phone is S-ON.
Make sure it's a complete firmware package and not only a partial one (make sure all images are inside this zip). updating firmware from 1.x to 7.x using a partial firmware.zip will most likely brick your phone.---> i already find "7.21.707.5_firmware.zip". Btw, how to flash firmware...?, is it same to flash as using RUU "htc_fastboot flash zip RUU.zip"
Code:
fastboot oem rebootRUU
fastboot flash zip firmware.zip
fastboot flash zip firmware.zip
fastboot reboot-bootloader