Excellent Phone Vivo X Fold 5 Global but bad Battery Drain since the New Update PD2436BF_EX_A_16.1.14.6.W20

Excellent Phone Vivo X Fold 5 Global but bad Battery Drain since the New Update PD2436BF_EX_A_16.1.14.6.W20. Since updating my Vivo X Fold 5, the battery life has become noticeably worse. I’m using the phone in the exact same way as before, and previously I never had to think about battery management. I used to leave Location and Wi‑Fi on all day without any issues. Now, because of the sudden and heavy battery drain, I find myself constantly turning off Location or Wi‑Fi just to make it through the day. That’s how drastic the change has been.

The only two apps I installed after the update were T‑Mobile and US Mobile, and I even removed them to rule out any impact. It didn’t help. For context, this phone has been fantastic overall — great camera, excellent feel in the hand (both folded and unfolded), and many features I really enjoy.

Before the update, from 7 AM to 11 PM, I consistently ended the day with around 30–35% battery remaining. Ever since the update, I’m ending the day with only 5–10%. Because of this sudden drop, I’m starting to wonder what’s actually causing it. I’m considering two possibilities:

1. The update itself introduced a bug or changed something in the system.
2. The silicon‑carbon battery might be acting up and struggling to hold charge.

Please share your thoughts and any possible solutions. I’m really hoping there’s a simple fix for this battery issue. I also really hope it has nothing to do with the silicon‑carbon battery itself, because that would be a lost cause for me. I imported this amazing phone from Hong Kong through Wonda Mobile, and since I’ve had it since November 2025, I doubt I’d be able to return or exchange it. I truly love this device, so I’m hoping the battery problem is something software‑related and not a hardware failure.