Battery is no working

@samsunggal77480 you are really not telling us a lot with your 4 words. It would be so much nicer if you could provide more history. Something like what you mean by your battery is not working. You could let us know if this means its not charging or not holding a charge. Or maybe even if it has swollen up and needs to be replaced Anything would be more helpful than just the four words you wrote.

We are really going out an limb here and make the assumption that your Phone is not coming on and that makes you think it is the battery. Well, yes, that could be. I would start troubleshooting as shown on the flowchart for your phone model. Let us know what you get with this.

As usual, I would always start with a new battery. This gives you a known-well starting point if needed.

Here is how to disassemble your phone

NO power Flowchart

Now you need to open this document Samsung SM J260 and with the search function of your PDF reader, locate the componentes to check and measure the voltages so you know that they are working.