incredible CQ56

[gcomputers]

Today I had a hp CQ56-220SL which I had repaired a month ago because does not charge and would not turn on
BIOS flashed all ok .

Had the same problem today. flashed bios ok turn on . I closed the laptop put the battery on ,it turned on and locked on the logo hp.
I removed the battery, and do not charge more the same problem.
Reopened flash bios again with another chip 1mb (because I thought is defective the chip) ok charge again turn on all ok .
Closed again when i put the battery blocked again

no charge no turn on dead

flashed again for the third time ,

I FIND THE PROBLEM IS BAD BATTERY WHEN I PUT IN HIM CORRUPT THE BIOS, WITH ANOTHER BATTERY FUNCTION NORMALLY.

Finally closed turn on without battery function perfectly.

I noted on the battery for the client, do not use more dangerous.

sorry for my english if i am not clear the fault is of google translate.

[ITSYSTEMSALBANIA]

Re: incredible CQ56

Mu me ka ndodh me nje laptop fujitsu qe nuk ndizte fare sepse kishte baterin e demtuar ty te pakten tu paska ndez.

[Agent24]

Re: incredible CQ56

Interesting. Did you find out why the battery was corrupting the BIOS?

Did a new battery solve the problem?

[gcomputers]

Re: incredible CQ56

Interesting. Did you find out why the battery was corrupting the BIOS?

Did a new battery solve the problem?

With new battery work fine.

[gcomputers]

Re: incredible CQ56

Mu me ka ndodh me nje laptop fujitsu qe nuk ndizte fare sepse kishte baterin e demtuar ty te pakten tu paska ndez.

Ndez por menjehere prishte biosin e Çuditshme. e kemi hap e mbyll dje tre here. ku punon ti un jam ne shkoder.

[ITSYSTEMSALBANIA]

Re: incredible CQ56

Ndez por menjehere prishte biosin e Çuditshme. e kemi hap e mbyll dje tre here. ku punon ti un jam ne shkoder.

Un punoj ne tiran.

[alas3376]

Re: incredible CQ56

U have to go step by step when closing.u can close without connectant mouse for exemple ,

[dellxps15]

Re: incredible CQ56

today i got an hp notebook dv5 with daqt8hmb mainboard. pc was reballed of nb and worked fine. as i mounted all back, plug in battery power on and i got the 2 blinking mean corrupted bios. put psu and pc power on ok. battery is almost charged, so that was strange. put another battery and charged it a bit and noticed battery inductor got a bit hot. after it was charged to let me power on laptop, it still did the 2 blinking caps (mean bios corrupted). if i use psu only or battery+psu pc power on ok.

so i checked bios voltage with battery only and with battery+psu and result are these:

with only battery voltage on pins:
1-3.3
2 0
3 3.3
4 0
5 0
6 0
7 3.3
8 0

with battery + psu:
1 0.17
2 1.5
3 3.3
4 0
5 0.23
6 0
7-8 3.3

[Th3_uN1Qu3]

Re: incredible CQ56

You should start another topic. But try cleaning RAM slots with IPA. If no go, the NB is faulty and needs to be replaced, reballing only fixed it for a little bit. Had the same issue on a couple dv5 boards. Replaced NB and all ok.

[RJARRRPCGP]

Re: incredible CQ56

You should start another topic. But try cleaning RAM slots with IPA. If no go, the NB is faulty and needs to be replaced, reballing only fixed it for a little bit. Had the same issue on a couple dv5 boards. Replaced NB and all ok.

QFT. Sounds like you need to reseat HDD and RAM, just in case of poorly seated RAM.

And there's a good chance it's the southbridge, if reseating don't stop the lockup at the BIOS logo.

BTW, I had a CQ 61 that suddenly fails to boot, with code #1.
Failed with a blink-of-death like a plasma tv, HP's version of the RROD!
(On April 19, 2013, was able to restore Windows 7, but the Athlon II CPU wasn't stable at stock clock without a cooling mat!) (Was found dead in November, 2014)

[highpulse]

Re: incredible CQ56

you got a problem on circuit battery detection.
this is clear obvious since pinnout for bios have a bad result , even for SPI channel you got 0 . now bat circuit protection works along a bunch of transistors that receive info from KBC to activate or not certain gate of does transistors .

and since KBC found a anomaly in this OCP OVP circuit , KBC will not work correctly , making you to not have correct spi values on the bios chip itself .

you got there a pretty nice challenge not very hard , but a patience work , you must get the schematic for you can follow each independent signal /voltage on the battery circuits .
alltough chek that this battery is ok ...

as also you stated , you mention you notice the inductor to get hot , well it will get a bit hot while charging . but if its to hot , defenitly you got prroblem on OCP circuits

if you stick around with this machine on your lab , next week i will be back from vacations , and i can help you out to reach a solution

keep up the good work