The "Flash File" is a collection of binary files used by the programming tool to write data to the phone's NAND or eMMC storage.
Standard File Package Contents:
A standard SPD flash file for the V75 usually contains the following files inside a .pac container: v75 flash file spd
File Format:
You may have a hardware issue (e.g., damaged emmc chip). However, try the "Test Point" method (shorting specific motherboard pins) to force the phone into emergency download mode. Search for "V75 SPD test point" on repair forums. The "Flash File" is a collection of binary
You might want to return to a stable older version after a buggy OTA update, or force an upgrade if OTA fails. File Format:
Unlike Qualcomm or MediaTek, SPD chips use unique tools: