crwdns2934243:0crwdne2934243:0 LauritsT
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Battery related (?) issue after water damage repair
crwdns2934249:0crwdne2934249:0:
| So my 2021 MacBook Pro 14'' had some liquid damage after which the computer initially did not boot up. Opening up the laptop I saw some corrosion in one spot of the mother board that had also two loose capacitors that were shorted. After cleaning up the corrosion and removing the capacitors the short was gone and I was able to boot it up (as I was guessing the capacitors were doubled up for redundancy) when I also disconnected the battery data cable temporarily. | |
| However now there appeared a problem, where the fans are spinning 100% the whole time. Reading a bit on this issue I think the problem is with some (battery?) sensors. Also, when shutting it down, I am not able to boot it up on when not plugged into the wall. Still, when turned on the battery holds it's charge very well as it should. Once disconnecting from the wall when shutting down, it does not boot up unless the battery data cable is again temporarily disconnected. | |
| Additional info: when not booting up after shut down, it draws 21V (without turning on), which seems normal voltage when operating, but no current is drawn. However, after battery data cable disconnect-connect it starts off with 5V and then when motherboard boots up it climbs to 21V as it should. | |
| TL;DR: Liquid damage causes the fans to spin at 100% and for booting up the laptop one needs to disconnect the battery data cable for a second. | |
| === Update (03/09/24) === | |
| Here are the pictures from the board. On the keyboard side there seems to be no corrosion or damage at all. From the corroded areas I did a close up picture - hope it helps. | |
| [image|3248005] | |
| [image|3247999] | |
| [image|3248006] | |
| [image|3248001] | |
| [image|3247996] | |
| The output from apple_sensors can be seen here: | |
| [image|3248011] | |
| As for the powermetrics - which sections are of interest? There is a lot of output for each run | |
| + | |
| + | |
| + | |
| + | === Update2 (03/09/24): === |
| + | I cleaned up the buggered up cable and the corresponding socket that are visible on the 4th picture. The powermetrics output can be found at https://pastebin.pl/view/bf3ec3db |
crwdns2866306:0crwdne2866306:0:
MacBook Pro 14" 2021
crwdns2915684:0crwdne2915684:0:
open
crwdns2934245:0crwdne2934245:0 LauritsT
crwdns2947189:0crwdne2947189:0:
Battery related (?) issue after water damage repair
crwdns2934249:0crwdne2934249:0:
| So my 2021 MacBook Pro 14'' had some liquid damage after which the computer initially did not boot up. Opening up the laptop I saw some corrosion in one spot of the mother board that had also two loose capacitors that were shorted. After cleaning up the corrosion and removing the capacitors the short was gone and I was able to boot it up (as I was guessing the capacitors were doubled up for redundancy) when I also disconnected the battery data cable temporarily. | |
| However now there appeared a problem, where the fans are spinning 100% the whole time. Reading a bit on this issue I think the problem is with some (battery?) sensors. Also, when shutting it down, I am not able to boot it up on when not plugged into the wall. Still, when turned on the battery holds it's charge very well as it should. Once disconnecting from the wall when shutting down, it does not boot up unless the battery data cable is again temporarily disconnected. | |
| Additional info: when not booting up after shut down, it draws 21V (without turning on), which seems normal voltage when operating, but no current is drawn. However, after battery data cable disconnect-connect it starts off with 5V and then when motherboard boots up it climbs to 21V as it should. | |
| TL;DR: Liquid damage causes the fans to spin at 100% and for booting up the laptop one needs to disconnect the battery data cable for a second. | |
| + | |
| + | === Update (03/09/24) === |
| + | Here are the pictures from the board. On the keyboard side there seems to be no corrosion or damage at all. From the corroded areas I did a close up picture - hope it helps. |
| + | |
| + | [image|3248005] |
| + | |
| + | [image|3247999] |
| + | |
| + | [image|3248006] |
| + | |
| + | [image|3248001] |
| + | |
| + | [image|3247996] |
| + | |
| + | The output from apple_sensors can be seen here: |
| + | |
| + | [image|3248011] |
| + | |
| + | As for the powermetrics - which sections are of interest? There is a lot of output for each run |
crwdns2866306:0crwdne2866306:0:
MacBook Pro 14" 2021
crwdns2915684:0crwdne2915684:0:
open
crwdns2934241:0crwdne2934241:0 LauritsT
crwdns2947189:0crwdne2947189:0:
Battery related (?) issue after water damage repair
crwdns2934249:0crwdne2934249:0:
So my 2021 MacBook Pro 14'' had some liquid damage after which the computer initially did not boot up. Opening up the laptop I saw some corrosion in one spot of the mother board that had also two loose capacitors that were shorted. After cleaning up the corrosion and removing the capacitors the short was gone and I was able to boot it up (as I was guessing the capacitors were doubled up for redundancy) when I also disconnected the battery data cable temporarily. However now there appeared a problem, where the fans are spinning 100% the whole time. Reading a bit on this issue I think the problem is with some (battery?) sensors. Also, when shutting it down, I am not able to boot it up on when not plugged into the wall. Still, when turned on the battery holds it's charge very well as it should. Once disconnecting from the wall when shutting down, it does not boot up unless the battery data cable is again temporarily disconnected. Additional info: when not booting up after shut down, it draws 21V (without turning on), which seems normal voltage when operating, but no current is drawn. However, after battery data cable disconnect-connect it starts off with 5V and then when motherboard boots up it climbs to 21V as it should. TL;DR: Liquid damage causes the fans to spin at 100% and for booting up the laptop one needs to disconnect the battery data cable for a second.
crwdns2866306:0crwdne2866306:0:
MacBook Pro 14" 2021
crwdns2915684:0crwdne2915684:0:
open