In November last year, ASUS began rolling out stable Android 10 to the ZenFone 6 series. The rollout was extended to the ZenFone 5Z a few weeks later. However, at the time, the mid-range ZenFone 5
It’s applicable for the Asus Zenfone 5 (ZE620KL) model only. The handset should be running on the 16.0615.2002.120 firmware version before you upgrade to the Android 10 Developer version. This is a Developer version (Beta), we’re welcome all developers to build a better Android 10 user experience together.

Kamu pengguna Asus Zenfone 5? Sudah upgrade ke Android 10 Developer?Pengen balik lagi ke Android 9?Di video ini saya jelaskan apa saja yang harus dilakukan d

However, just because the battery on your Asus Zenfone 5 ZE620KL isn't charging doesn't mean it needs to be changed right away. Remember that before reaching the battery, the electric current travels through a logic board and is detected by the Android system and firmware.
Just wanted to share a good procedure to relock the bootloader, in case you are not satisfied with the limitations of the custom ROMs (like banking apps refusing to work) and want to go back to stock ROM. https:(slash)(slash)forum.xda-developers.com(slash)asus-zenfone-5-2018(slash)how-to(slash)ze620
ASUS ZENFONE 5 ZE620KL. Note! If a file asked for a password please use EF File Extractor and extract .EF extension

Hello! Unfortunately I dropped my Asus Zenfone 5 Ze620kl, in a drain full of water, and I managed to recover it. Now the problem is that it turns on, but the screen is black. I should recover the photos that are of the device, but if I connect it to the PC, the cell phone sees me, but it sees it empty, USB debugging is probably not active.

Method 1: Upgrade via Recovery. Download the firmware file from the download link given above and move it to your device storage. Now, enter the device into the recovery mode. Switch off your phone > Hold and Long press Power button + Volume Up and your device will boot into recovery mode. PfOsag.
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    • firmware asus zenfone 5 ze620kl