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Published on Januar 12th, 2011 | by fich

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HOWTO: Downgrade HBOOT Alpharev 0.93 to 0.80 and unroot to Stock-ROM HTC Desire

Attention! This works only with AMOLED Devices, do not do this with SLCD Desire!

Downgrade Alpharev 0.93 to 0.80:

1) Download this ROM-File to your PC-Hard-disk, rename it to PB99IMG.zip and copy it to your HTC Desire SD-Card

http://www.wuala.com/HTC_Desire/RUU/PB99IMG_Bravo_HTC_WWE_1.21.405.2_Radio_32.36.00.28U_4.06.00.02_2_release_126984_signed_txt.zip/

2) Turn of your phone and boot into HBOOT by pressing the minus-volume-button and power-button the same time

Now the upgrade-file should be checked, after passing this you can downgrade your phone by pressing the plus-volume-button

By finishing this upgrade (in this case downgrade) you are running HBOOT 0.80 and HTC Desire Android 2.1 Stock-ROM.

If you wish to install the T-Mobile UK Stock-ROM you must

1) Download this file to your PC-Hard-disk

T-Mobile UK HTC Desire Stock-ROM:
http://www.4shared.com/file/dc3mrn2o/RUU_Bravo_TMO_UK_1.21.110.4_Radio_32.36.00.28U_4.06.00.02_2_release_127570_signed.exe.html

2) Boot into HBOOT as described above and select Fastboot

3) Start the downloaded exe-file and follow the steps on your screen

UPDATE:

Installing the TM-UK stock-ROM did not work for me – i think i need the 0.75 HBOOT for this t-mobile uk rom and i don’t want to downgrade to 0.75, so i decided to send my HTC Desire with WWE-stock-ROM back for warranty repair. Let’s see what happens!

UPDATE2:
After 1 week i have got my Desire back from Redcoon shop and the fault is fixed! Better to say – i have got a new Desire (other SN and IMEI).


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4 Responses to HOWTO: Downgrade HBOOT Alpharev 0.93 to 0.80 and unroot to Stock-ROM HTC Desire

  1. Jan says:

    Main Version is older -> FAIL

  2. crisis says:

    please explain, what fails? the part with the t-mobile stock rom does not work, i know, but it should not affect your warranty, when the htc stock rom is installed, your phone is prepared to send it back

  3. Mehr lesen says:

    Sehr interessant. mfg

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    articles. I’ll bookmark your weblog and check again right here regularly. I am quite certain I will be told many new stuff right here! Good luck for the following!

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