X-Git-Url: http://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/a8b1c5faeea0d66ac8d3a0ffb203bdd40dacd905..271aba3cc2efb48d8c0720a80a64f7845124cba6:/blog/archive/2016/07/07.rss diff --git a/blog/archive/2016/07/07.rss b/blog/archive/2016/07/07.rss index 1984efd6cb..5fea0374ff 100644 --- a/blog/archive/2016/07/07.rss +++ b/blog/archive/2016/07/07.rss @@ -6,6 +6,91 @@ http://people.skolelinux.org/pere/blog/ + + Unlocking HTC Desire HD on Linux using unruu and fastboot + http://people.skolelinux.org/pere/blog/Unlocking_HTC_Desire_HD_on_Linux_using_unruu_and_fastboot.html + http://people.skolelinux.org/pere/blog/Unlocking_HTC_Desire_HD_on_Linux_using_unruu_and_fastboot.html + Thu, 7 Jul 2016 11:30:00 +0200 + <p>Yesterday, I tried to unlock a HTC Desire HD phone, and it proved +to be a slight challenge. Here is the recipe if I ever need to do it +again. It all started by me wanting to try the recipe to set up +<a href="https://blog.torproject.org/blog/mission-impossible-hardening-android-security-and-privacy">an +hardened Android installation</a> from the Tor project blog on a +device I had access to. It is a old mobile phone with a broken +microphone The initial idea had been to just +<a href="http://wiki.cyanogenmod.org/w/Install_CM_for_ace">install +CyanogenMod on it</a>, but did not quite find time to start on it +until a few days ago.</p> + +<p>The unlock process is supposed to be simple: (1) Boot into the boot +loader (press volume down and power at the same time), (2) select +'fastboot' before (3) connecting the device via USB to a Linux +machine, (4) request the device identifier token by running 'fastboot +oem get_identifier_token', (5) request the device unlocking key using +the <a href="http://www.htcdev.com/bootloader/">HTC developer web +site</a> and unlock the phone using the key file emailed to you.</p> + +<p>Unfortunately, this only work fi you have hboot version 2.00.0029 +or newer, and the device I was working on had 2.00.0027. This +apparently can be easily fixed by downloading a Windows program and +running it on your Windows machine, if you accept the terms Microsoft +require you to accept to use Windows - which I do not. So I had to +come up with a different approach. I got a lot of help from AndyCap +on #nuug, and would not have been able to get this working without +him.</p> + +<p>First I needed to extract the hboot firmware from +<a href="http://www.htcdev.com/ruu/PD9810000_Ace_Sense30_S_hboot_2.00.0029.exe">the +windows binary for HTC Desire HD</a> downloaded as 'the RUU' from HTC. +For this there is is <a href="https://github.com/kmdm/unruu/">a github +project named unruu</a> using libunshield. The unshield tool did not +recognise the file format, but unruu worked and extracted rom.zip, +containing the new hboot firmware and a text file describing which +devices it would work for.</p> + +<p>Next, I needed to get the new firmware into the device. For this I +followed some instructions +<a href="http://www.htc1guru.com/2013/09/new-ruu-zips-posted/">available +from HTC1Guru.com</a>, and ran these commands as root on a Linux +machine with Debian testing:</p> + +<p><pre> +adb reboot-bootloader +fastboot oem rebootRUU +fastboot flash zip rom.zip +fastboot flash zip rom.zip +fastboot reboot +</pre></p> + +<p>The flash command apparently need to be done twice to take effect, +as the first is just preparations and the second one do the flashing. +The adb command is just to get to the boot loader menu, so turning the +device on while holding volume down and the power button should work +too.</p> + +<p>With the new hboot version in place I could start following the +instructions on the HTC developer web site. I got the device token +like this:</p> + +<p><pre> +fastboot oem get_identifier_token 2>&1 | sed 's/(bootloader) //' +</pre> + +<p>And once I got the unlock code via email, I could use it like +this:</p> + +<p><pre> +fastboot flash unlocktoken Unlock_code.bin +</pre></p> + +<p>And with that final step in place, the phone was unlocked and I +could start stuffing the software of my own choosing into the device. +So far I only inserted a replacement recovery image to wipe the phone +before I start. We will see what happen next. Perhaps I should +install <a href="https://www.debian.org/">Debian</a> on it. :)</p> + + + How to use the Signal app if you only have a land line (ie no mobile phone) http://people.skolelinux.org/pere/blog/How_to_use_the_Signal_app_if_you_only_have_a_land_line__ie_no_mobile_phone_.html @@ -110,6 +195,12 @@ to associate it to my home and person. I would prefer it if only those I knew could tell who I was on Signal. There are options avoiding such information leakage, but most of my friends are not using them, so I am stuck with Signal for now.</p> + +<p><strong>Update 2017-01-10</strong>: There is an updated blog post +on this topic in +<a href="http://people.skolelinux.org/pere/blog/Experience_and_updated_recipe_for_using_the_Signal_app_without_a_mobile_phone.html">Experience +and updated recipe for using the Signal app without a mobile +phone</a>.</p>