Cp crash issue

A16 5g back camera nor working while whatsapp video calling ,I have already clear cache of camera app and all permissions of whatsapp for camera .please solve this problem .on another app back camera work fine only whatsapp video calling for back cam...

After updating one ui7 my A16 5g facing battery drain and slow charging issue .

My A16 5g device takes 2/3 hours charging time in fast charging mode for 100% charging ,any solution

Please provide secure folder for Sam A22 5g