Non charging - Acer ES1-111

[Mrmech]

Hello All,

First time posting here so bare with me - if I've not provided all information.

Firstly thank you for all the helpful resources on here it's help me learn a lot while I've been self teaching.

The Issue:

The laptop works fine with no signs of liquid spillage at all. The battery how ever is detected by the computer but it does not charge.


What I have done:

I have checked for dry joints following the schematic to the best of my abilities and retouched up some joints excluding IC chips.


Electrical :- schematic used (quanta_zhk_r3a_20140630_schematics)
So following the schematic i have identified the OZ8691LN-B IC (PU11) as the charging IC - up to this chip voltages appear to be normal.


Here are the outputs and inputs for this IC.
Pin voltage
1 0.02 v iOUT
2 18.9v iacm
3 18.9v iacp
4 0.0v cen - chg_cen
5 0.0v goes to gnd
6 18.9v vsys
7 3.33v scl
8 3.33v sda
9 0.0v comp
10 21.2v PA

11 to 15 18.9v VAD

16 to 20 0.4v VBATT

This 0.4 volts goes all the way to the battery connector.

The battery label asks for 12 volts for charging this is why i suspect there something wrong with this IC.


Is my assumption correct or I have i missed something due to being new to this.

Thanks for any input.

to do: need to upload the pictures of board and put schemtic details.

[SMDFlea]

Re: Non charging - Acer ES1-111

Have you updated the bios to the latest version, theres an EC fix for charging. Theres also a battery rest hole on the bottom case,you`ll see the extra button on the motherboard. Had the same problem with a es1-111m

[Mrmech]

Re: Non charging - Acer ES1-111

Hi,

I've not updated the bios i'll give this try and report back. i did try the battery reset hole and that didn't work so i assumed it was something on the board.

[Mrmech]

Re: Non charging - Acer ES1-111

Reset button id nothing for the battery

When i run the update tool it says "Battery is too low (0 < 15). Please charge your battery to 15%." I'm running it off mains since battery has no charge.

Seems i'm in a dilemma here.

[SMDFlea]

Re: Non charging - Acer ES1-111

Theres a workaround in this situation. Run the bios update exe on a different pc,the bios will not update it will give you an error message.Leave the error message on screen.Go into windows control panel and in the folder options,enable "show hidden files and folders" ,then go into C:\users\yourname\appdata\local\temp .In that folder theres a temp folder for the bios update (sort by date) ,copy that flder and get it onto the ES1-111 .Go into that folder and open the platform.ini file with notepad . The file wants editing to disable the battery check ,it just wants changing from 1 to 0 BatteryCheck=0 ,and save the changes. Run the insydeflash.exe from that folder ,it should update now without the battery check.

[Mrmech]

Re: Non charging - Acer ES1-111

oh! I'll try this and report back.

So far so good. The software picked up the board and bios version.Currently rebooting.

[Mrmech]

Re: Non charging - Acer ES1-111

Plugged in and charging!

Thank you for your help! I wish i had known about this bios fix.

Just means another good day where I have learnt something new!

Currently at 0% but i'm guessing the battery has been discharged for so long it's going to require a bit longer to wake up or a replacement is needed.

===

Update: now at 2% voltages on the board to the battery connector are now where i expect them to be and a lot higher then 0.04 volts.

[sourcebf]

Re: Non charging - Acer ES1-111

Theres a workaround in this situation. Run the bios update exe on a different pc,the bios will not update it will give you an error message.Leave the error message on screen.Go into windows control panel and in the folder options,enable "show hidden files and folders" ,then go into C:\users\yourname\appdata\local\temp .In that folder theres a temp folder for the bios update (sort by date) ,copy that flder and get it onto the ES1-111 .Go into that folder and open the platform.ini file with notepad . The file wants editing to disable the battery check ,it just wants changing from 1 to 0 BatteryCheck=0 ,and save the changes. Run the insydeflash.exe from that folder ,it should update now without the battery check.

thanks for this information very very useful