nokia c2 ta-1204 fake charging

[ashan000]

nokia c2 ta-1204 fake charging.. have about 3.5v in +pin when connect charger. i have changed charging ic(bq24157a). still same condition. any solution plz. can anyone help. i could not find any schem.. or bv files.

[keeney123]

Re: nokia c2 ta-1204 fake charging

nokia c2 ta-1204 fake charging.. have about 3.5v in +pin when connect charger. i have changed charging ic(bq24157a). still same condition. any solution plz. can anyone help. i could not find any schem.. or bv files.

I believe this is the correct charging circuit for the Nokia C2. Although it is in block diagram with values for component it would seem easy to Ohm out with a meter to understand connections.

[ashan000]

Re: nokia c2 ta-1204 fake charging

I believe this is the correct charging circuit for the Nokia C2. Although it is in block diagram with values for component it would seem easy to Ohm out with a meter to understand connections.

i think this is not correct one.. model num is TA-1204... can you please check again?

[keeney123]

Re: nokia c2 ta-1204 fake charging

i think this is not correct one.. model num is TA-1204... can you please check again?

Here is a video of replacing the charging port for the model number of your nokia. The board looks very similar to the block diagram I attached below. I will continue to look. However, your meter can verify the connections to prove or disprove whether the block diagram matches your charge circuit. This can be done quickly because of the simplicity of the charge circuit.

https://www.youtube.com/watch?v=Jo8_XsKSTRE

[keeney123]

Re: nokia c2 ta-1204 fake charging

I also ran across this for no charge problem. I am still looking.

https://www.mobilerdx.com/2015/05/no...-solution.html

[keeney123]

Re: nokia c2 ta-1204 fake charging

So, I have look and manufacturer I believe is taking the schematic down from sites because of infringement rights. You might try this site. I cannot do a google search on the site because of protection and I am not going to go through all of the post page by page.

http://diagramphone.blogspot.com/

[ashan000]

Re: nokia c2 ta-1204 fake charging

Here is a video of replacing the charging port for the model number of your nokia. The board looks very similar to the block diagram I attached below. I will continue to look. However, your meter can verify the connections to prove or disprove whether the block diagram matches your charge circuit. This can be done quickly because of the simplicity of the charge circuit.

https://www.youtube.com/watch?v=Jo8_XsKSTRE

I think charging board is okey. charging ic located on main board. ic num is bq24157A.. 5v for vcc presents.
with coil near to ic, ic out only 3.5v

when i remove coil, ic outs 4v.. i checked nearby caps, but they seems ok.

is there any way to jumper or some trick to use?

[keeney123]

Re: nokia c2 ta-1204 fake charging

Before we use the jumper trick, please read this explanation as this might help you understand what is going on when charging a phone.

https://www.etechnophiles.com/why-a-...le%20processor.

Focus on the BSI pin.

Also, look at post 2 block diagram when thinking about BSI
On the D3100 in the block diagram look up all the connection names and how they work. A Data sheet for the D3100 can provide this information.