Re: Acer A315-51 Clean ME request
it works perfectly, thanks!
Conste
Badcaps Veteran
Last Activity: 03-13-2025, 01:15 PM
Joined: 10-30-2018
Location: Stuttgart
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Acer A315-51 Clean ME request
Hello together,
I have an Acer A315-51 which needs around 15 seconds to post.
A clean ME is needed.
Could somebody please clean the attached dump of the unit.
Thanks in advance!... -
Re: Lenovo Legion Y530 no power
When only the chipset gets hot you have the error.
Resistance to ground of this line?Leave a comment:
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Re: Hp ZBook 15 G2 turns on when adapter connected
I think this schematic isn't the fitting one. U45 and U46 have 8 pins in your schematic, but in my case U45 has 6 and U 46 has 5 pins.
The one I linked from ZBook 17 G1 (LA-9371P) seems to be closer to my board LA-B391P. Unfortunatley I cannot find the exact schematic.
But thanks for your help !! :-)
When I power off the board (PWR_BTN to ground for 3 sec) the board shuts down and also all voltages (3VS, 5VS, 1.05VS and +3VALW). +3VALW and +5VALW are still there but not passing the MOSFETs, which...Last edited by Conste; 04-16-2022, 12:49 PM.Leave a comment:
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Re: W25Q64BV alternative?
Yesterday I replaced Winbond 25Q128FVSQ with a Micron one 25Q128A, it workedLeave a comment:
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Re: Hp ZBook 15 G2 turns on when adapter connected
Good morning and thanks for the reply.
I do not have the schematic.
It is getting more strange. When I power up or plug in AC or battery laptop starts by itself always (with or w/o CMOS bat.).
I get no screen, just 5 blinks and fan at full speed.
When I power it down then without CMOS battery and any battery or power and start again it posts (maybe then some voltage is discharged?!).
First mosfets are good, PQ101 + 107 (4423) are in parallel, source 19,5 volts, gate around...Last edited by SMDFlea; 12-11-2023, 04:41 PM.Leave a comment:
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Re: Hp ZBook 15 G2 turns on when adapter connected
Guess I have a similar issue, Zbook 17 G2 LA-B391P.
With battery only notebook works good, also restarts etc are possible.
With AC connected (with or without battery) laptop doesn’t post when powering on, only 5 blinks.
When restarting in windows with AC the same, 5 blinks.
Without battery laptop starts automatically, no Post. CMOS is at 3,09 V.
Bios was flashed and EEPROM (16 MByte) was swapped, no change.
Guess here is also a similar Problem?
Schematic...Leave a comment:
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Re: HP ZBook 17 G2 bios dumps EC + MAIN needed!!!
Same shit again, laptops shows only 5 blinks and then fan turns on at full speed.
I will try to change the EEPROM now.Leave a comment:
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Re: hp ZBook 17 G2 Bios issue
Hello and thanks for your effort.
I took the above mentioned dump from hoaca388, and it works fine! Just installed windows successfully
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hp ZBook 17 G2 Bios issue
Hello together,
I have an hp ZBook 17 G2 with some weird issues in bios, sometimes it boots, sometimes it only blinks 5 times. Then I have to leave it untouched for some time and it works again..
I guess it is corrupted.
Tried many bioses from the web, but I always get the message "machine is not in committed state".
So my final hope is that somebody repairs my backup image.
Already tried to update bios, no success.
Or is there any way to take a clean bios and put all my system information...Last edited by Conste; 04-09-2022, 03:42 PM.Leave a comment:
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Re: Panasonic CF-SZ5 Bios Password Removal
Works fine, thanks!!!Leave a comment:
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Panasonic CF-SZ5 Bios Password Removal
Hello together,
I have a Panasonic CF-SZ5 here which requires a password (my guess), unfortunately the language is like japanese or chinese.
Can somebody have a look at the dump and remove the password, please?
Thanks in advance!... -
Re: Motherboard of Fujitsu E754 on E744 laptop
on E554 models there is a eDP and LVDS version of board, which use the same connector on the mainboard.
So the (wrong) screen will fit but not work.Leave a comment:
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Re: Lenovo Yoga 500-14ISK - No battery charge
Had the same Problem, but my Unit didn't Turn on at all anymore. AC OK missing on Charger Chip. Chip blown.
Then I replaced Charger Chip, Unit worked again Fine.
Now after two weeks the flickering issue and not charging. Replaced resistor this morning to a 10 Ohms one but with bigger footprint.
Charging and working again, I hope this works longer.Leave a comment:
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Re: Clevo W25CEW power cycling
Anyone?
I have measured resistance of PLT_RST to ground and it is 15-17 Ohms, is that too low?Leave a comment:
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Clevo W25CEW power cycling
Dear forum,
I have a Clevo W25CEW Notebook which died. It worked perfectly, but then it stopped working.
As I see it tries to power on (drives RAM power supply etc.), but then turns off after less then one second.
Bios and EC were flashed, same issue.
I also see power consumption at 19V switching between 0,1 A and 0 A.
19v rail is fine. I also see 3v3 and 5v (VDD5 is there/ 5v & 5VS is there for a short time and then goes to 0V, exactly same for 3v3, see page 34)
On bios chip I see between 0 and 3v3, with the power cycling....Last edited by Conste; 01-31-2022, 02:48 PM. -
Re: Lenovo Z500 LA-9063P VIWZ1_Z2 Rev. 1.0 no power
I do it as a hobby also and try to become better and better.
Another reason can be a damaged bios, which is really easy to fix.
I have also changed a KBC from Asus A555L before which worked afterwards perfect, but this was a hard job. Thanksfully we have a good microscope at work...Leave a comment:
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Re: Lenovo Z500 LA-9063P VIWZ1_Z2 Rev. 1.0 no power
After measuring the MOSFETs I searched for working 4407A from a scrap board. Then I soldered both MOSFETs on the board again.
When putting power on the board I saw 19v on shunt resistor (PR302) and checked other voltages (3v3 and 5v on coils).
Then I connected the battery and saw that charging lieght came on.
Finally I completed the board with RAM/CPU etc., but had no screen. Then I flashed a EC and BIOS dump from here and got it working.
So it was really the first MOSFET, still...Leave a comment:
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Re: Schematic components with mark SL...
I do believe that these are like testpoints?!Leave a comment:
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Re: I cannot erase the whole bios chip with AsProgrammer
Do you desolder the EEPROMs?
I have seen similar things, whenever it occurs I desolder the chip and then erasing works fully....Leave a comment:
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