Develop Bugs

Odd phenomenon when charging.

I'm procrastinating at work, noticed something weird.
When the phone is charging, I glide my fingers across the back, and feel a faint charge, kind of like the phone is vibrating. Maybe my fingers are super sensitive to the grooves in the finish? I don't know.
As an engineer, let's go about this scientifically.
Control:
Naked HTC One M8 (Gunmetal) with Spigen Tempered Glass Protector
OEM HTC Charger that came with the phone
Plugged in to a surge protector. The only other thing plugged in is the AC Charger for my HP Elitebook
Phone is face down while plugged in on wooden desk
Test:
Gently glide finger across the back of the phone.
Anyone else feel this? Or am I going crazy at my government job?

Just tried it and felt it too!

Next step is voltmeter and phone case vs ground. It's possible that the charger isn't properly grounded, so although it only delivers a potential of 5V, those 5V are sitting on a 50Hz sine wave of, maybe 30-50V (thats a guess based on my experience of electrical shocks).

Just tried it and felt it too! Amazing)) Maybe my M7 became a mobile cat? ?

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Sent from my HTC One_M8 using Tapatalk

I have felt it forever but my baby just felt like that because he was sitting on the charging phone. Suddenly it is more disturbing than neat.

I felt it for a long time. I use it as a indicator of charger quality. My HTC one m8 charger that came with the box charged it without any problem at all for the first few days. Then suddenly this vibration arised from nowhere. I tried another m8 charger it didn't cause the vibration. Then i tried some aftermarket nonbrand cheap chargers, all of them caused the same vibration. Then i tried a two samsung charger that came with my two other phone, they didn't give any vibration at all. Then I tried a Xiaomi charger that came with Redmi4prime, it was also perfect. BTW all of the chargers I used are two pin, no ground whatsoever.

How to fix note 2 wifi issues with pictures

Hi guys. Sorry if this is in the wrong thread but thought I'd post up to show how I fixed my note 2 wifi problem,
So my specific model is the sgh-i317m and I'm in the uk, bought the phone recently as I've always fancied one, anyhow when I got the phone home and set it up I had very weak wifi connection, no signal at all up stairs (would disconnect) and even if I was in the same room as the router I wouldn't have any wifi signal bars (unless I was smack bang next to the router)
Anyway I Googled the issues and saw 5 hat it is a common problem, tried all the usual stuff and nothing worked so decided to get my tools out. Anyway here is how and what I did, I'm not sayo g this will work for everyone but it worked for me.
I recommend you have a professional do this unless you have the knowledge and skills base.
Things you'll need;
Small screwdriver set,
Small tweezers
Magnifying glass (optional but makes it somewhat easier)
patience is key here.
Any how,
Once you've removed the back chassis from your phone and mother board you will see these prongs
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*this photo is from Google as I was doing this repair to my daily phone do couldn't use for photos* lol
Anyway on mine this prong had come loose and therefore wasn't contacting properly, I pinpointed this anyway as when you pressed on the back of the phone the signal would boost,
Anyway this is where you need your soldering iron, and a spare motherboard, you could possibly use something else but I had spare motherboards lying around so used one from a crapberry
So once you've let your soldering iron get up to temperature press it as close as you can to the underneath of this prong to liquidise the solder underneath, be patient, I held the soldering iron there for 10-15 seconds before it liquidised. you'll know when it's hot enough as the prong will move, I held it with small tweezers to make it easier.
So now you should have your old prong removed, move this away as not to get confused with the one your replacing it with. Repeat above steps for the one from your spare motherboard.
Once you've done that, if you have a flux pen lightly cover the solder pads, place your prong on them with the tweezers and hold it still, then hold your soldering iron on the prong for about 30-60 seconds to be safe, gently move away your soldering iron away from it and if it's tight on you've done it successfully.
I will post up some photos of the full process but this should be easy enough to follow. And I'm sure you'll be able to find a guide on you tube (if not I'll upload one)
Hope this helps. Feel free to comment with any questions etc.

Phone not booting after replacing rear camera and SD card reader.

I'm still not sure how it happened, but I somehow managed to crack my camera. Not just the lense like everyone else due to heat issues, but the actual camera.
So I figured I'd replace it myself instead of paying someone 100$+ to do it, and then have them charge me double for the part.
I made a pretty bad screw up the first time and broke the cable going to the power/volume buttons when initially opening the casing, and didnt realize until after I had replaced the camera.
I just got the new SD card reader/button cable in yesterday, and finished replacing it about 5 minutes ago. But the phone still will not boot.
I double checked all of the flex cables/signal cables to be 100% sure everything is plugged in properly, and not broken.
All of the flex cable protectors are back in place etc., but it just won't boot. the charge indicator won't even turn on when I plug it in.
I followed the video shown https://www.youtube.com/watch?v=4RRJAHbnYmQ to take it apart initially, then followed it backwards to be 100% sure I wouldn't miss anything when putting it back together.
The only thought I have, is that Im having issues getting the case to snap back together completely.
That's when I noticed the pieces shown in the pictures below.
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This is my first time actually working on a phone, but from what I assume, they look like some kind of spring based switches that will sever very important connections if the phone isn't completely put back together, with the case holding these raised parts down to complete a circuit.
I'm not sure if that's my problem, or if I somehow managed to screw up something a lot more important.
Can anyone at all shed some light on this?
Edit: Another thought just occurred, would I be able to use my UH-OH protection for this, even though technically speaking I'm the one that caused it to become completely non functional by opening it and attempting repairs on my own? Should I drop the thing in a bucket of water for a while first to claim UH-OH?

charging board flex fix

if you're looking for charging port fix, here is a small tip i hope could help you..
you can read all the thread or just jump to bottom line
my charging port stopped working after about 3 months of usage.
this was very frustrating, and didn't happen at once. at first i had to put the charging cable in certain direction, and later on i had to put some leverage on that direction, until eventually i couldn't charge at all.
it is known that this phone is one of the hardest to open, and once you put it on the "surgical table" it's hard to finish the job without "scars" , so i do understand those of you who chooses repair stores over fixing adventures. on the other hand, at least in my country, HTC repair cost so much that you ought to think about other options.
So then my tip is for those of you who have the willing and repair equipment.
You'd probably look for replacement charging board, which indeed are very cheap, and then just check out one of the many tear-down youtube videos explaining how to open the phone and replace the port.
i chose to fix the exist port instead.
to be honest, i also bought replacement. but not only it got damaged, i've found out after opening the phone that there are the two different boards for 32G/16G versions. so instead of buying another part, and waiting another month or so until arrival, i figured i can try and check out what went wrong with the current one.
i did use lab microscope to find out the problem, but there weren't many suspects to begin with.
turns out for 3 out of the 5 micro USB pins (the middle 3) - the connection to the board got broken.
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so i just used friend help and soldered the 5, and voilà, phone charging again..
note that -
1. the pins were barely soldered to the board. very little amount of tin
2. I've checked my USB cables and it does look like the metal connector length differ in sizes from one to another. even if not by much, it's clearly visible. so it's very likely that inserting a cable with long connector time after time just broke the connection.
bottom line,
if your charging port malfunctions, and you happen to have soldering equipment, or a friend who does, just carefully solder/strengthen exist soldering of the 5 USB pins to the charging board.
i guess you can even take the board and ask for any electronic repair shop just to solder those. will cost much less than expert store repair

Questions for somebody who has already opened a Nexus 5X (or similar) before

Hello. Some weeks ago I sent my Nexus 5X to the technical assistance with the problem I described here https://forum.xda-developers.com/nexus-5x/help/brick-apparently-reason-t3680715. Now they told me that they won't repair it under warranty because they found traces of liquid/oxide inside it, so they are sending it back to me unfixed. Now I find this odd because the only encounters it has made with water were in the form of small quantities dropped on the screen (the amount you can drop by moving a glass in the air too quickly) which I dried immediately and the symptoms seemed to point to a bad contact. Anyway the repair center provided an image in which seems that actually some liquid has made it inside the case, but I can't recognize which part of the phone it is. Here's the image:
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So the questions are: which is the part in the photo? Do you have an idea about how could have a liquid made it inside the phone (I think that is unlikely that it was by dropping something on the screen)? Do you think that the problem I experienced is compatible with a water-induced short circuit or any other damage by liquid?
Thanks in advance for your answers and explanations

I actually thought that was a picture of the shipping box before I read your post. I took mine apart to where I could pull the motherboard off, and there definitely wasn't blue tape holding something down. The only thing I can think of is that is maybe the back of the screen. Which would be after pulling the metal frame off.
Check out these pictures. If you go all the way toward the end steps, you can see you get all the way until there is mostly the metal frame inside the plastic and stuck to the back of the display without seeing anything that looks like your picture.
Their picture honestly seems to be an entirely different phone. But of course they may have changed assembly and parts at some point. I would take it apart when you get it back, take pictures and if nothing looks like the picture they sent, see if you can appeal or whatever. Maybe you can just point to the 3rd party teardowns and ask them to point out where they claim the picture is from.
https://www.ifixit.com/Teardown/Nexus+5X+Teardown/54403
https://www.ifixit.com/Teardown/Nexus+5X+Teardown/51318

I think it's under the battery, the blue part looks like the battery adhesive but it's normally black,
It was was to get behind there it would of had to enter via the simcard