⟐ Commented Mayıs 16, 2026 at 23:27 GMT-7

⟐ Commented Temmuz 16, 2021 at 3:55 GMT-7

⟐ Answered Ocak 14, 2020 at 4:24 GMT-7

I tried replacing the battery with a new one, and tried using a different charger, and still have the same issue.

A late update: ~1 month after resolving the issue, the laptop started having similar problems again. To solve them, i just removed 1 of the RAM modules. Haven't had any more issues, apart from a defective battery. So it seems the problem was the RAM.

⟐ Commented Ocak 19, 2025 at 21:12 GMT-7

⟐ Commented Temmuz 30, 2025 at 23:04 GMT-7

So now I really don't know what's the problem can you guys help me

⟐ Commented Aralık 29, 2025 at 16:06 GMT-7

⟐ Answer edited Ağustos 01, 2017 at 12:50 GMT-7

⟐ Answered Mart 03, 2026 at 6:25 GMT-7

⟐ Commented Haziran 06, 2026 at 13:19 GMT-7

⟐ Answered Ağustos 12, 2023 at 14:03 GMT-7

⟐ Commented Mayıs 04, 2026 at 21:52 GMT-7

⟐ Answer edited Şubat 25, 2022 at 2:37 GMT-7

⟐ Commented Şubat 25, 2022 at 12:52 GMT-7

I have downloaded the HP assistant and done a battery check, the results come back as no battery detected?

I am not sure what the issue is, but we have also notice the date and time is out of sync and the laptop is only running on the AC charger, could this be an issue with the mother board?

⟐ Commented Temmuz 27, 2022 at 15:46 GMT-7

⟐ Answer accepted Haziran 08, 2026 at 7:36 GMT-7

⟐ Commented Mart 19, 2018 at 1:30 GMT-7

⟐ Answered Ağustos 08, 2023 at 17:43 GMT-7

⟐ Commented Haziran 28, 2026 at 7:27 GMT-7

The only sign of life is a blinking orange LED beneath the charging port.

I tested original charger with multimeter, so that is fine. Also I checked the USB-C PSU. When I plugin a volt/ampere meter to the USB-C charger I can see the PD communication from laptop to PSU is fine: it get's up to 20V and pulls 0.4A.

I also tried to detach battery and CMOS battery, press power button for 15-30 sec then only attach power supply. Unfortunately that didn't help.

Does one have an idea what that blinking orange charger LED means? Only thing I can find online is according battery things. But that LED also blinks if if detached the battery and only provide power supply.

Are there good points to test voltage on the motherboard? Does the battery voltage pins need to have ~11V if PSU is attached?

Update - 2024-03-10:

For my feelings it's pulling to much current: 420mA with not battery attached. Feels like there is somewhere a short.

I did different measurements, but don't know how to narrow it down from here. Can someone guide me on measurements?

Update - 2024-03-14

Seems like the thunderbolt controller (or some peripheral of that) causes an issue. I tested with my fingers which chip is getting really really hot and it's that JHL7340.

Can one say if it must be that chip causing issues if it's getting hot, or if that might be related to some of its peripheral? I'm wondering if it's really shorted, as PD exchange with USB-C PSU is still working (but maybe it's not that chip doing PD exchange?!)

Update - 2024-04-29

I did a lot of reading and repair video viewing (thanks Sorin) now and decided to order a replacement chip on aliexpress as well as a cheap hot air station on amazon. After some trials on an old broken PC motherboard, I replaced that BGA chip in a fearlessly mood with the new one, with the result of "no short anymore".

Unfortunately that doesn't seem to be the only thing... Measurements on the main power rail look like the second mosfet is also shorted (0 Ohms resistance). So first mosfet gets 20V input, on the output it's gone...

So now, as I have the tools, I ordered that one on aliexpress too and will try to replace it. Will keep you updated, just in case someone stumbles over that topic here.

⟐ Answered Şubat 23, 2026 at 15:06 GMT-7

⟐ Answered Şubat 02, 2024 at 10:39 GMT-7