You might want to return to a stable older version after a buggy OTA update, or force an upgrade if OTA fails.
If you'd like, I can help you find for the V75 PAC file or a driver installation guide . v75 flash file spd
Press and hold the (or sometimes Volume Up) key as the "Boot Key." While holding the key, connect the phone to the PC via USB. You might want to return to a stable
, the following tools are most effective for this specific file: Chinese Miracle II (CM2) SPD Module v75 flash file spd
Users search for this firmware for several urgent reasons. Here are the most common scenarios: