Which part of the mainboard is the cell antenna? - Vibrant Q&A, Help & Troubleshooting

I'm working with a Vibrant that has zero signal and am seeing if I could repair it.

Okay. I figured it out myself. Maybe it's not obvious for others, but the antenna on the left side of the phone (right side is the GPS) is the antenna. In my circumstance, this phone recently got the GPS-fix as outlined in the General sticky, but went wrong. So I removed the broken antenna(completely de-soldered it off the board) and filled the contact with 0.22 60/40 solder and filed it down using a nail filer(emery board). The result is posted below.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
This worked in my experience. I reverted the phone back to stock using AIO and got a signal again and am now running ICS(ExROM) with little problem in reception. Only problem is that getting a good signal indoors is near impossible now. I've concluded that signal penetration is weaker as a result. However if you're outside under a good sky: there won't be any problems whatsoever.
Hopefully, someone finds some use out of this information. Better a "partial" working phone than a dead one

Related

Anybody know where the wifi+bluetooth arial is?

OK know my X10 got ran over a few months ago and I brought a new case, lcd screen and digitizer for it and replaced the parts myself and the phone works fine apart from no wifi and bluetooth.
If anybody has any pictures pointing out where the wifi+bluetooth aerial or hardware is located I can take it back apart and look for damage to this part.
Before you ask, it was on 1.6 when repaired last week, wifi would come on but failed to connect to any router. After I flashed a generic X10i rom to the phone the wifi would not come on and I have tried a few wifi scanning apps from the market and they all say no connection. I only noticed the bluetooth not working yesterday when I tried to run blueputdroid.
So any images that you guys have would be great
Here is a picture of the phone in bits, on the main board at the bottom right is where the main aerial connects to the aerial in the back case, this cant be the fault as the phone has a great signal so if this was damaged surely the phone would have no signal what so ever???
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

[Q] What phone is this?

Was walking home, and found this on the floor. I've always wated to find a phone on the floor, but this isn't exactly what I had in mind.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
All I'm able to tell is that it's a Samsung device, and it may be GSM because of the microSIM slot I see on the back. The back had no battery, no cover, no SIM, the screen is clearly decimated, two capacitive buttons missing (it takes talent to break capacitive buttons) and most buttons are pretty much loose.
I may spend a little money to get this thing fixed up, assuming it even turns on. I planned on getting a battery to test out first, then if it worked, fixing up the phone and keeping it or selling it. Not anytime soon, since I just bought a Nexus 4 while already low on leisure money, but it would be nice.
From the picture you provided and the detailed description it appears to be a Samsung Epic 4g.
If your interested in some replacement parts for the device I would recommend taking a look at these parts www.globaldirectparts.com/Samsung-Epic-4G-Replacement-Repair-Parts-s/6425.htm.
Sent from my SCH-I535 using xda premium

[Q] Replaced usb flex cable, bad reception

I recently replaced by usb flex cable because the usb port wasn't charging the phone properly anymore (2nd time I might add).I noticed that my reception was incredibly poor after this so I tried to put the old one back in, but now the reception isn't any better in a lot of placed, though I think its back to LTE speeds for data when its available whereas before it wasn't but it many places I get no reception at all or very poor reception.
I may have damaged a little cable/plugin on the flex port, but i'm not sure what it is. Can anyone identify this? (picture)
i35 DOT tinypic DOT com FORWARDSLASH 212ii53.jpg
It won't let me post links so I hope this works
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
maybe that part powers the antenna?
I think you might have accidently unplugged something somewhere else on the phone when you replaced the board. Or you ruined the actual lil wire that attaches to the receptacle in the pic you posted. If you swap boards shown in the pic and it doesn't fix problem it's something else.

Severe Drop/Fixed my device

Was testing out my Desire X's camera and my butter finger'ness came back and it slipped, smashed the ground. The screen looks fine, it just smashed open st the bottom. The battery doesn't really fit in properly, but if you push it in hard it fits in properly, but the device doesn't turn on.
There is also this two clips, does it have anything to do with proving battery power?
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
My question is, can this device still be recoverable as its not as bad. And I had paid money for it. Cheapest way to fix this? I've tried pushing everything into place but it just flings out.
When connecting the device to the PC it has a blinking led at the top which is red. Which blinks on and off.
Edit - the device turns on just fine oo freaking strong device.
Yeah, should be fixable. I think you'll need this as replacement and hopefully it will work fine then. Didn't test myself, I only had to replace screen assembly some time ago, but this part is easy to replace, provided that you've got the right screw driver available.

Water damage; Only charging seems affected. How to check/repair?

{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
My so left it on the kitchen dresser. When I picked it up (because it was bootlooping) the water came dripping out. I think most of it was in the seams between the cover, but there were some substantial drops in it, but only on the plastic parts.
I placed it immediately in rice to dry with the back removed. It still booted afterwards, and everything seemed to be functional (wifi, rotation, camera etc.). Only charging doesn't work. Ran battery endurance test to heat it up a little extra, but charging still doesn't work.
I see some corrosion a little above and to the left of the battery. Other than that I cant spot anything unusual. How do I check which part is the problem?
Yikes.
You could... send it back to HTC, and let them tell you what is wrong with it, then perhaps buy the part yourself and install it.
With any electronic, I would disassemble it and assure that every part is clean & securely fit.
Maybe the smart chip in the battery shorted? Maybe only the battery needs replacing. I have no idea how to confirm that.
Good luck, man.

Categories

Resources