Vivo S1 Pro PD1945F Fingerprint Sensor Not Working After Flash? Solution Here!
After flashing your Vivo S1 Pro PD1945F, if the fingerprint sensor has stopped working or is missing from the settings, you're not alone. This is a common issue caused by missing persist partition or an improper flash. In this guide, you'll learn how to re-enable the fingerprint function with the correct firmware flash method.
Issue: Fingerprint Sensor Disabled After Flash
The fingerprint sensor not working after flashing often happens when the persist.img partition is not properly written, or when flashing is done with a version mismatch.
Possible Reasons:
- Corrupted or wiped
persist.imgduring flashing - Wrong region firmware installed
- QFIL configuration missing critical partitions
- Sensor driver conflict after boot
Files Required
- PD1945F_EX_A_8.70.62 Firmware (Official)
- QPST/QFIL Tool
- Qualcomm USB Drivers
How to Fix Fingerprint Not Detecting
- Install Qualcomm USB Drivers and extract QFIL Tool.
- Unzip the Vivo S1 Pro firmware using 7Zip or WinRAR.
- Open QFIL and select Flat Build.
- Load the
prog_emmc_firehose_xxxx.mbnfile. - Click Load XML and select
rawprogram.xmlandpatch.xml. - Ensure the persist.img line is NOT unchecked in rawprogram.xml. You can edit the XML manually to include it if it's missing.
- Boot your Vivo S1 Pro PD1945F into EDL Mode via Test Point.
- Once detected in QFIL (Qualcomm HS-USB QDLoader 9008), click Download.
Once flashing completes, boot the phone and check fingerprint in Settings > Security. If still missing, perform a factory reset from recovery mode.
Download Section
| Resource |
|---|
| Firmware: PD1945F_EX_A_8.70.62 |
| QPST/QFIL Flash Tool |
| Qualcomm USB Drivers |
Note: Do not skip the persist.img partition during flashing. Always match firmware region and build number with your original ROM to avoid hardware issues.
For more firmware files and tutorials, visit Firmware4Mobile.com.