Kyocera BASIO phones (BASIO, BASIO2, BASIO3, BASIO4 — au/KDDI senior-friendly handsets) are Qualcomm-based and flash via QFIL in EDL (9008) mode. Match the firmware to your exact BASIO generation; they are not interchangeable.
When you need this
Flash the stock ROM when your BASIO is bootlooping, stuck on the logo, or dead after an update. A forgotten lock screen only needs a hard reset.
Before you start
- Back up your data first.
- Install the Qualcomm USB drivers (guide).
- Get the ROM for your exact BASIO model and carrier.
How to flash with QFIL
- Load the firehose programmer and rawprogram/patch XMLs in QFIL.
- Boot the powered-off phone into EDL (9008) mode with its key combo and connect USB.
- Click Download, wait for success, then boot.
Common problems
- Not detected: reinstall Qualcomm 9008 drivers.
- “Sahara fail”: wrong firehose for this BASIO generation.
FAQ
Will flashing bypass the Google lock?
No — flashing stock firmware does not remove FRP protection.
