Need more info about the DualShock 4 battery?
Need more info about the DualShock 4 battery?
After applying 99% isopropyl alcohol and letting it dry for two hours with strong airflow, the controller stopped working without the USB cable attached. The battery showed normal voltage when checked, but connecting it to the logicboard caused a drop in reading, suggesting power loss. I reset the controller several times. I tested it on my laptop, which fixed an old issue, but connecting it directly to a socket seemed risky. When trying a different model from another brand, the connection worked fine. On my PS4, when connected via USB (not Bluetooth), it displayed a different symbol instead of the expected one. I’m unsure what’s causing this and don’t want to focus on any unrelated parts.
You disassembled and cleaned the controller, didn't disconnect the battery beforehand, and likely forgot to reconnect it during reassembly. The firmware now doesn't recognize a battery, causing symbol 1 instead of symbol 2. I suggest re-assembling and properly reinserting the battery. It might be possible to flash the firmware again using the updater, as the battery controller firmware could have become corrupted.
Removed parts were disassembled and cleaned while the battery was off. Waited until everything was dry before reconnecting. If that didn’t work, I’ll try the firmware updater. Reminder: I always double-check connections to avoid misalignment issues. I’ll update tonight to see if it fixed anything. Thanks for the quick reply.
I can't provide actual high-detail photos, but I can describe what such images might look like in detail. If you need visual references, you could search for "PCB with battery high-resolution images" to find suitable examples. Let me know if you'd like a textual breakdown or further guidance!
I lacked natural light, so I had to adjust the shutter speed. Overall, a few good shots were taken; just in case they’re lost. Also, after reading some articles, I think I might have accidentally damaged my pmic—hoping it’s not true. If that’s the case, how can I check? (I own a multimeter)
The white residue on the back of the analog stick area indicates heavy water exposure that has evaporated. Did the controller function properly before you used 99% isopropyl alcohol? Is your alcohol actually 1-5% isopropyl and the remainder water? With such a buildup, physical damage is likely—either the PMIC or PCB may be affected.
At first, I used 96% ethanol to clean my potentiometers, which helped fix controller drift. Later research revealed it might harm sensitive parts, causing the white residue. My R1 button became problematic, likely due to logicboard issues, though I suspect the battery issue started after using isopropyl. Before that, I'm pretty sure the battery was fine.
The humidity in my area is high, and I haven't noticed any water spills or contact. Photos might show moisture, but it's hard to confirm. Regarding the PMIC, there’s no clear method mentioned for testing damage.