Try to upgrade firmware but not detected

This is my device description:
- Model Name: ASUS X00LD
- Firmware Version: WW. 14.0400.1708.160-20170911
- Rooted or not: no
I tried to upgrade firmware using version WW-15.0400.1910.528 as provided on the web. I was downloaded it then copied to internal phone, but there is no reaction on system update detection such as icon notification on the drawer, even I restarted several times.
What should I have to do? I want to upgrade Bluetooth version instead. And also to follow the android development until the latest firmware.
Need solution...
Please help me.
Thanks
1
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Hi dr.nasseer
Thank you for your asking. To perform a cross-Android update, you need to update to the previous Android 7 version before the first Android 8 version. Kindly refer to the steps below
Auto update>WW-14.0400.1808.206>Manual update>WW-15.0400.1809.405>Auto update>Your preferred version
#ZD553KL Firmware Spot
https://www.asus.com/Phone/ZenFone-4-Selfie-ZD553KL/HelpDesk_BIOS/
#Manual Update Guide
https://www.asus.com/support/faq/1009748
Thank you for your guideline. Now my ZD553KL was upgraded to the latest firmware with Android 8.1.
But the next issues are:
1. The printing option is gone, I can't print any files directly to printer using USB cable.
2. Also it can't detect any flashdisk attached with OTG.
Would you please give me a solution. Thanks
Hi dr.nasseer
Thank you for your reply. Can you received the notification while link on the USB? Try to tap the notification>tap "file transfer"
Besides, can you tell me where can you find the printing option? I found some apk from the website for the latest firmware version, please try the apks like AsusLauncherDev, MobileManager... except "UnlockTool".
Thank you for your quick respons.
1. I can't receive that notification while connected via USB. Before upgraded, the USB flashdisk always detected.
2. When my firmware still Android 7.1, there is a printing option on the setting. But it's gone after upgraded. Then also can't detect USB Host Mode.
Would you have any suggestions?
Hi dr.nasseer
1. Kindly change another USB cable, or check if the cable can work with other phone or not.
2. Have you tried to install those apks?
Which rom i need download to upgrade my phone mod?
Hi leehueesu
Thank you for your asking. Kindly provide the information below so that we can better assist you.
1. Model Name: Settings>System>About phone>Model
Refer to the link below to check the model name by model no. in the link
https://www.asus.com/support/FAQ/1014441/
2. Where did you get this firmware version?
3. Have you ever unlocked or rooted your device?
Thanks for answers! I buy it from a buyer on Lazada. I check it unroot . It still stuck on 7.1.1 ver...i cant upgrade to 8.1
1. I changed another USB, but nothing happen. Still not working.
2. Yes I tried them all, but still no USB is detected and USB diagnostic test is failed.
Can you help me?
Hi leehueesu
Primarily, I can't found your firmware version (WW-14.2016.1707.145), which is not on our official website. Yet please try download WW-14.2016.1708.153 file from our website into the root directory (aka the outermost place) of the internal storage. Reboot. Then tap the pop-up system update notification. If this method works, you can perform the update one firmware by one firmware.
Hi dr.nasseer
Thank you for your asking.
1. Please try to enter "Safe Mode". If the function works well in Safe Mode yet the issue remains out of Safe Mode, please check on any disturbance from the installed 3rd party apps.
# How to enter and exit "Safe Mode"
https://www.asus.com/support/FAQ/1005163/
2. Also, please try "the Factory Reset"
Settings>System>Reset options>Erase all data(factory reset)
Please note that once the Factory Reset is completed, all data, apps, settings and personal information will be deleted.
3. Because your USB can not be detected, if the issue persists after performing the Factory Reset, please bring your device to ASUS repair center in the country of your residence for further checking: https://www.asus.com/support/Service-Center-All-Countries/
If it is impossible to access the service center during Covid-19 period, please try Call us: https://www.asus.com/support/CallUs
Thanks you so much Christine Mod. I will try..
I give up, Christine.... Maybe i have to buy a new phone. Thanks for your help. Cảm ơn!
Hi leehueesu
Thank you for your reply. Can you provide me a video of your update process recorded from another device? Also, you can check with the Repair Center in the country of your residence for further device checking: https://www.asus.com/support/Service-Center-All-Countries/
If it is impossible to access the service center during Covid-19 period, please try Call us: https://www.asus.com/support/CallUs