LOLLIPOP
A. UNLOCK THE BOOTLOADER
For the Official D820ys or Other Desire 820s which came with Lollipop out of the box follow this procedure to unlock the bootloader:
(This will wipe you data)
1. Register for an account at HTCdev.com
2. Visit this link http://www.htcdev.com/bootloader/
3. On Select Your device option, Choose All Other Supported Models
4. Follow all the steps and you will succeed to unlock the bootloader
For the unofficial D820ys or other Desire 820s, us or ts which you have Lollipop after flashing with SP Flash Tool follow this procedure to unlock the boootloader:
1. Download this pgfs file Unlocked pgfs
2. Extract it and you will get pg1fs file
3. Paste the file into the flash file folder (D820S_LOLLIPOP_TW or D820S_LOLLIPOP_WWE) and replace the current pg1fs file
4. Run SP Flash Tool but tick only pg1fs and flash as usual (Press and hold volume up while flashing and let go when flashing begins)
(Remember not to tick every item as it will wipe your data)
B. FLASHING TWRP
1. Download mini-Sdk mini-sdk
2. Extract it
3. Open command prompt(Click in the extracted folder and press shift and right click then choose to open command prompt here)
4. Boot phone into Download mode by switching off the phone then hold power and volume down buttons
and connect to PC with a USB cable
5. On the command prompt, Type: fastboot flash recovery <name of recovery.img>
example: fastboot flash recovery twrp_lollipop_tw.img
6. Reboot Bootloader==> Reboot recovery
C. TO ROOT
Download UPDATE-SuperSU-v2.65-20151226141550.zip and install in recovery mode
KITKAT
Requirements
1. Download SP-Flash-Tool-v5.1532.00
2. Download Kitkat TWRP for your device variant (download it from the end of this thread)
3. Download Desire 820s Kitkat scatter file
4. USB Cable and PC
A. FLASHING TWRP
1. Place the TWRP recovery and scatter file you have downloaded to a folder and name the folder to "820s"
2. Rename the TWRP recovery you have downloaded to "recovery"
3. Extract SP-Flash-Tool-v5.1532.00.zip and launch flash_tool as Administrator
4. Click Scatter Loading by the right
5. In the window that pops up, select MT6752_Android_scatter in the 820s folder
6. Make sure only recovery is ticked in SP Flash Tool
7. Click Download
8. Switch off the phone and connect phone to PC
9. A progress bar should start running, DO NOT interrupt
10. Wait until you get a Success message (green circle with OK)
11. Disconnect USB cable and boot into recovery mode with power button and volume down
(If recovery mode gets skipped ensure you have downloaded the correct TWRP recovery for your variant)
B. TO ROOT
Download UPDATE-SuperSU-v2.65-20151226141550.zip and install in recovery mode
Downloads
TWRP Recoveries
TWRP Recovery 3.0.2-0 Desire 820s [Lollipop]
TWRP Recovery 2.8.4.0 Desire 820s[Kitkat]
Flashify App
A. UNLOCK THE BOOTLOADER
For the Official D820ys or Other Desire 820s which came with Lollipop out of the box follow this procedure to unlock the bootloader:
(This will wipe you data)
1. Register for an account at HTCdev.com
2. Visit this link http://www.htcdev.com/bootloader/
3. On Select Your device option, Choose All Other Supported Models
4. Follow all the steps and you will succeed to unlock the bootloader
For the unofficial D820ys or other Desire 820s, us or ts which you have Lollipop after flashing with SP Flash Tool follow this procedure to unlock the boootloader:
1. Download this pgfs file Unlocked pgfs
2. Extract it and you will get pg1fs file
3. Paste the file into the flash file folder (D820S_LOLLIPOP_TW or D820S_LOLLIPOP_WWE) and replace the current pg1fs file
4. Run SP Flash Tool but tick only pg1fs and flash as usual (Press and hold volume up while flashing and let go when flashing begins)
(Remember not to tick every item as it will wipe your data)
B. FLASHING TWRP
1. Download mini-Sdk mini-sdk
2. Extract it
3. Open command prompt(Click in the extracted folder and press shift and right click then choose to open command prompt here)
4. Boot phone into Download mode by switching off the phone then hold power and volume down buttons
and connect to PC with a USB cable
5. On the command prompt, Type: fastboot flash recovery <name of recovery.img>
example: fastboot flash recovery twrp_lollipop_tw.img
6. Reboot Bootloader==> Reboot recovery
C. TO ROOT
Download UPDATE-SuperSU-v2.65-20151226141550.zip and install in recovery mode
KITKAT
Requirements
1. Download SP-Flash-Tool-v5.1532.00
2. Download Kitkat TWRP for your device variant (download it from the end of this thread)
3. Download Desire 820s Kitkat scatter file
4. USB Cable and PC
A. FLASHING TWRP
1. Place the TWRP recovery and scatter file you have downloaded to a folder and name the folder to "820s"
2. Rename the TWRP recovery you have downloaded to "recovery"
3. Extract SP-Flash-Tool-v5.1532.00.zip and launch flash_tool as Administrator
4. Click Scatter Loading by the right
5. In the window that pops up, select MT6752_Android_scatter in the 820s folder
6. Make sure only recovery is ticked in SP Flash Tool
7. Click Download
8. Switch off the phone and connect phone to PC
9. A progress bar should start running, DO NOT interrupt
10. Wait until you get a Success message (green circle with OK)
11. Disconnect USB cable and boot into recovery mode with power button and volume down
(If recovery mode gets skipped ensure you have downloaded the correct TWRP recovery for your variant)
B. TO ROOT
Download UPDATE-SuperSU-v2.65-20151226141550.zip and install in recovery mode
Downloads
TWRP Recoveries
TWRP Recovery 3.0.2-0 Desire 820s [Lollipop]
TWRP Recovery 2.8.4.0 Desire 820s[Kitkat]
Flashify App
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