These packages contain the stock firmware as supplied by ZTE. You may want to use them to...
If you wish to return to stock, use the following procedure:
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- Return to stock after installing a custom ROM.
- Upgrade from an older firmware to a newer one while on a custom ROM.
- Recover from modifying stock /system in TWRP.
- ... etc ...
If you wish to return to stock, use the following procedure:
- Boot into TWRP.
- Wipe data and cache.
- Flash boot stack.
- Flash system and boot.
- Flash recovery.
- ...
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