Please tell us some basic information before asking for help:
Model Name: ZB631KL
Firmware Version: 16.2017.2002.073
Rooted or not: No
Frequency of Occurrence: Everytime
APP Name & APP Version (If your issue relates to the app): NA
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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I went into stock recovery to wipe cache partition. I was greeted with this error.
E:couldn't load bitmap fill_ball (error -7)
Supported API: 3
Cache partition wipe and reboot were successful. But just want to shed some light on such error. I have two Max Pro M2 in my house and both showed the same error. Both are running on latest firmware (.073). Please note that my phone is NOT rooted and bootloader is NOT unlocked.