My HP ENVY dv7 won't charge. I have taken out the battery, used multiple wall sockets, used two different cords and it will not charge. What should I do?
crwdns2934109:0crwdne2934109:0
crwdns2934065:0crwdne2934065:0: 691
6
3
Does it turn on when connected to power cord without the battery?
crwdns2934105:0crwdne2934105:0
If it does it sounds like a defective battery and seeing as your laptop is relatively new it may still be under warranty.
I also found out what the solution is!
On the mainboard (near the power connector) is a TI chip (Texas Instruments), identified as BQ 24740. (Texas Intruments part # BQ24740)
This is the battery loader and power control chip.
It is easily destroyed by a weak and flimsy external power supply, like what is delivered with HP products.
The DE-soldering and soldering is tricky, because it is a QFN package, and very small.
It solved my problem for just $ 8for the chip and $60 for a local shop to install
crwdns2934105:0crwdne2934105:0
crwdns2936751:024crwdne2936751:0 0
crwdns2936753:07crwdne2936753:0 0
crwdns2936753:030crwdne2936753:0 10
crwdns2942667:0crwdne2942667:0 537
