I have been using my OPPO Watch 3 PRO since the end of 2022, and it has been functioning well until recently. However, from last Sunday, the watch's battery life has unexpectedly become very short. Initially, I could use it for 3-4 days on a single charge, but now I need to charge it at least once a day, and it still loses around 10% of its battery life per hour. Upon researching online, I thought it might be a software bug related to the recent updates, so I planned to roll back to a previous version. However, after searching for a downgrade tutorial, I found that people had been reporting similar issues since mid-July, and the customer service responded that the problem was caused by damage to the rear cover module. Unfortunately, I need to replace the hardware at my own expense. The attached images show the inside of the watch after disassembly, which indicates the damage to the module.