Improves connectivity with modern smartphones.
: These units typically run on either Windows CE (WinCE) or Android . WinCE versions are notoriously difficult to update as they use proprietary software with few official manufacturer releases.
If it does not auto-detect, go to and tap Update .
Record this information exactly. It often follows a format like V5.5BT-FK-TP , with a date such as 2017.08.11 . This version string is a vital clue in your search for a compatible update.
Before initiating the update process, make sure you:
Contact the original seller on eBay, Amazon, or AliExpress to request the exact firmware link for your batch.
