![]() This will take a long time.ġ5) Phone should then boot up in WWE mode. Use volume and power to start the process. Boot back into Fastboot.ġ4) You should be prompted to install the RUU. Indeed, for the KESS or KTAG to work, the contents of the SD-cards must be encrypted in relation to its CID. Save the updated disk imageĭd if=/sdcard/sdf1.img of=/dev/block/sdf1ġ1) Boot into download mode and verify your updated CID by running:-ġ2) Prepare an SD card with the RUU in the root of the card, renamed as 2Q4DIMG.zip.ġ3) Power off phone & insert SD card. SD-cards provided with KESS and KTAG don’t meet the standards to be able to have a serial number (CID) identical between them. You'll need:-ģ) Boot into download mode, connect your phone via USB and run (just for reference):-įastboot flash recovery twrp-3.2.1-2-ocm.imgĦ) Select Advanced -> Terminal and enter:-ĭd if=/dev/block/sdf1 of=/sdcard/sdf1.imgĨ) Open the image in HxD and locate HTC_621. Sorry I forgot to post full instructions - here they are:-ġ) Download all the relevant files. There are many things in the extracted image, maybe some encrypted data is hidden inside. ![]() I noticed that there is also a cid in sde1, but modifying it does not make me to pass the checking of HTC.Īfter I failed on flashing the other RUU pack, I restore cid, mid and version number, and I pass the checking this time, so I don't think modifying them will cause trouble. The type file allows us to determine which mmc device is an (. The flash it back to the sdf1 partition byįor changing version number to downgrade, here is the link: Mount an SD card in a built-in (not USB-connected) SD card slot in an Android device. The flash it back to the sdf2 partition byĢ.Open the image file by text editor, find the cid of your phone. ![]() I hope people who are familiar with these can find things that I didn’t notice.Ģ.Open the image file by hex editor, find the mid of your phone. The following is the method of modification. transfer all data from memory card to computer (using win explorer) 4. So I guess all the Thinkpad laptops with built-in SD card reader should work. update 1: Ive tried three more SD cards from different brand, all works update 2: I tried the app on my neighbors IBM X60, also worked. It seems that HTC has some cryptographic verifications for this, so I cannot modify everything. Connect my android phone via a usb cord 3. FYI the laptop is IBMs T61 with built-in SD card reader, product id is 7663MC2, the OS is Windows 7 32Bit Home Premium. You can then select 'Use as portable storage,' and you'll keep all the files on your device. ![]() If it's an SD card, you'll see a 'Set Up' button. You'll see a notification indicating your SD card or USB drive was detected. I successfully done this today, but I encountered some problems while flashing the RUU pack. Insert the card it into the microSD slot on your device. After the last time I successfully downgraded by modifying /dev/sde1, I tried to modify cid and mid in the same way. ![]()
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