In continuation of this topic http://forum.xda-developers.com/showthread.php?t=284909, i used all the information collected in this forum and other forums and i will briefly present you the procedure i used to modify XGPS car kit, so that it provided me with audio/microphone outputs, so that i can connect it to my car stereo, using it's line-in OR using an RF modulator.
First of all, i disassembled my car kit, using just a screwdriver
Then, using a soldering iron, i removed the integrated speaker (since i will not need it).
After that, i removed the existing 2.5mm connector, and i cut all the wires that lead to it. I used some plastic welding epoxy, to give strength to the plastic base that the PDA "sits". I then drilled a hole, in order to insert the new 2.5mm 4 conduct plug!
This is the new plug, taken out off my old handsfree
And this is how it looks inserted into its place
Then, i screwed it back on the car kit, and i used my "Wizard" in order to assure that it fits as before. With the "Wizard" still in place, i put some plastic welding and finished!!! Wait for 15 minutes for the epoxy to dry, and my 2.5mm 3 conduct factory plug, is replaced with a 4 conduct taken out of my old unused handsfree
I prepared 2 small "boxes", for holding speaker/microphone connectors(rear box) and for adding some small blue leds to give my mod a more "artistic" look(front box)!!! I mainly used some acrylic sheet(2mm) and aluminium sheet(1mm). I curved acrylic by heating it, using a heat gun i had. Generally, i had almost all the necessary tools/material already from my previous PC mods.
Acrylic boxes and alluminium covers, we painted black using a spray gun. The rear box, was(i have to admit) better prepared. I'm already planning to redesign the "front" box.
Rear and front boxes are screwd on the factory cradle.
Some more pics!!!
Here are the connectors i'll use. 2 for speakers(stereo-black) and 2 for microphones(mono-beige). I'll explain more on my decision in next posts
Here are the connectors mounted on the rear box
Here is my hand!!!
Alright!!! It took me some practise in order to solder the small wires of my old handsfree. In fact, i extended them using some wires i had, so that soldering on the connectors would be easier-and it was!!!
Now, why did i use more connectors than needed? The reason is simple. The connectors are setup as master-slave(at least in Computer hardware, this is how it's called). That means, one of each 2 connections of each type (speaker/microphone) come first. So, i'm planning to connect the 2nd connector to my car stereo(maybe using an RF transmitter). If i need to make a private call(that means cancel audio from my car stereo), then i simply plug in a stereo headset. This way, i can hear from the headset, without having audio from my car stereo! If i change my mind, i simply unplug the headset, and audio is directed again to my car stereo. Hope i didn't make it very complicated!!! The same applies for microphone (i already bought a small cheap microphone from ebay).
Now, on the picture below, you may notice a greenish layer(actuall it's ocean blue). This is actually some sort of UV acrylic. Some leds are inside the front box, so that when connected to the car, it displayes a light blueish color (Uv acrylic makes it look fantastic!!!)
Now, you can preview the back cover(made off 1mm aluminium) of my cradle. It's also painted the same black color. 4 holes will be used to insert 4 black rivets to secure it in place
Unfortunately no more pictures for now... I'll try to post more in the next days, as the cradle is ready and already installed in my car. I get power from my car's switch(12V) to drive the cradle and an RF transmitter (Monster Radioplay 300). My stock head unit doesn't have an audio-in, so this explains my decision. Sound is perfect when using it for handsfree (no echo, great sound). Now, when playing music, it sounds as it gets from a strong radio station, so i guess this means success!!! Plus, i have the option to connect it to my future head unit (if it has a line-in of course!!!).
Now, my next steps;
1)I'll redesign the front cover, so that it looks more tidy(i used some ugly screws-paint also is very glossy)
2)I'll make a small stand for my car, to mount the RF transmitter and the microphone.
3)Prepare my "Wizard" for speach recognition, used to make calls-play songs etc-Do you have any suggestions on that?
So.... more pictures to come in the next days!!! Pls ask for any questions or any help you need if you want to make something similar or better OR if you have any suggestions/questions
Does anyone else have a gap between the battery door and the phone near the headphone jack and top mic? I didn't notice this before.
Yep. The entire top of the phone is not sealed as tight as the rest of the phone. Not sure if its worth it to do an exchange through Wirefly given no dead pixels or any other problems so far.
Sent from my PG86100 using Tapatalk
When I replaced my digitizer, I noticed I forgot to replace those 3 small rubber plugs on the back cover. Apparently they just fell out when I disassembled it. There are round brass contacts exposed where those plugs covered...like something plugs in or connects to them. Anyone know what their use is for?
Anyone ?
My guess would be that they were used during the manufacturing process to be able to directly program certain functions...
Sent from my ADR6425LVW using xda app-developers app
These plugs are used in manufacturing to hook up external Antennas to the phone for calibration or testing.
ahhh
I wondered if it had to do with the antenna.
Thanks shimshun.
My SM-T520 seems to have a broken headphone jack. Headphones are not recognized anymore on any ROM. Did someone succesfully repaired or replaced his headphone jack connector himself or knows good spare parts for this?
Nope...mine has been broken for a while.
I looked at parts, which you can easily find, but gave up once I realized the speaker needed to be replaced with the jack, involving a lot more than I expected.
So I decided to buy Bluetooth headphones!
cuki3r3k83bln said:
My SM-T520 seems to have a broken headphone jack. Headphones are not recognized anymore on any ROM. Did someone succesfully repaired or replaced his headphone jack connector himself or knows good spare parts for this?
Click to expand...
Click to collapse
This guy list it on Ebay but overpriced, you can try looking somewhere for cheaper. It should not cost more than $10.
http://www.ebay.com/itm/OEM-SAMSUNG...EFT-LOUD-SPEAKER-AUDIO-JACK-FLEX/132170935765
Replace it quite easy, remove 2 screws from the headphone jack, gently pry up the power and volume flex which sticks to the frame by double sided tape.
Pry up the speaker at the positions which have the arrow symbol. Reverse action for new left speaker assembly.
Anyone else feel earphones don't fit 100% inside the jack?
Recently my earphones became totally loose. The earphone's 3.5MM pin was rotating freely inside the jack. Then I put stitching pin inside the jack :silly: to clean it out and blew inside it and did many things to clean it. Nothing came out haha but when i tried the earphones were finally working and produced 'tick' sound for fitting but i noticed that some part of this was still outside.
Anyone else's earphone jack this or my jack is damaged?
I have the same earphones too. But somehow don't have issues like this