Related
Before anyone jumps on me, I've been going through the Wiki and forums extensively, and found just one similar problem. Which wasn't solved...
My HTC TyTN/Hermes 200 won't boot up anymore. It is totally dead. I even can't get it into bootloader mode. Screen stays blank and the LED is off.
Put the (3 months old) battery in another Hermes to test it, and it's at 100% charge.
My Hermes shows a steady red LED when it's plugged into power without the battery in, and no LED at all when the battery is installed. The red LED turns off when the battery is installed while there's power going into the unit.
I've left the battery out for at least an hour, plugged it back in, same results. Like the other guy I tried the "pull power, pull battery, plug in power, plug in battery, reset" trick http://forum.xda-developers.com/show...6469&p=1077622 - to no avail.
Does anyone have any last resort ideas on how to get it to at least come back up to a boot loader screen ?
check the battery contact points on the phone. the hermes shows a red led when its plugged in but without a battery
... have you ever dismantled your hermes? your screen ribbon cable may have dead tracks or not be connected properly
just a test on the opposite side of the battery connectors with battery removed press firmly without putting pressure on the LCD, this worked for me when i had a white screen on power up.
if this fixes the problem you may need to actually dismantle the back and put some flame retardant electrical tape on the back over the existing tape to add an extra layer of pressure and retension
XtreMe_G said:
check the battery contact points on the phone. the hermes shows a red led when its plugged in but without a battery
Click to expand...
Click to collapse
Yes, I have cleaned the contact too, nothing. And the battery is OK for sure, my colleague's TyTN runs on it without any problem.
Mattnokis said:
... have you ever dismantled your hermes? your screen ribbon cable may have dead tracks or not be connected
Click to expand...
Click to collapse
In fact I have, I have totally dismantled and reassembled my TyTN yesterday afternoon, nothing.
the only other problem may be that when being dismantled you may have damaged some sensitive components, Electro Static Discharge will fry sensitive CMOS components, they do not like it at all, whenever dismantling you should wear an earth strap, any time i dismantled mine it was on a workbench with a static mat and i was earthed through the mat.
but this is one possibility, the only other idea is to swap main board and displays with another that works, finding someone willing to allow you to do this with a working hemes is the tough part.
thats as much all i can think of for now
R.I.P. my trustful Hermes 200
Thanks all for your assistance. I have come to the conclusion that my sweetheart is no longer among us. May she rest in peace.
I have obtained a (2d hand) replacement yesterday. May this one last longer.
I'll keep the old TyTN for replacement parts.
Oh well...
Hi all,
Banged my phone a bit, nothing too bad however all the physical buttons no longer work.
I can use the phone but just not the buttons which is very frustrating, to power on I have to remove Batt. and then plug into usb and put batt back in, can't answer cools or get to the home, the phone is basically unusable.
Brought item new off ebay unfortuanatly.
What should I do?
Thanks
Henry
Get yourself a Torx 5 and a 6. Then you can crack her open and see if you've shaken something loose. There is a connector between the main board and the daughter board, there is also one between the daughter board and the UI module. One of these may come off.
HTC may still cover it under warranty... provided there's no external damage that would lead them to believe you abused the phone.
By now I feel like the unluckiest person on this planet...
About two months ago, I lost my HD2 and of course whoever found it didn't return it. Then about a month ago, I bought another used HD2. The battery cover was severely scratched and there was some light damage at the corners so I ordered a new housing on eBay. In the mean time I have been installing all kinds of stuff on it but didn't actually use it as a phone (didn't insert my SIM card) because I wanted to wait for the new housing and for a protective silicon case - I didn't want to use the phone "unprotected".
I have replaced the housing of dozens of phones before so I know what I'm doing and what to look out for (I'm an electronics engineer) and replacing the housing of the HD2 was actually surprisingly easy.
When I put the phone back together again, it wouldn't turn on. At all. And when I put it on the charger, the charger light wouldn't come on. So I just opened up the housing again and put it back together. This time it did turn on. Figuring that was the end of it and that something probably wasn't making proper contact, I left it at that.
That was two weeks ago. Since then, the phone has been on all the time (in the charger) and I have been installing more stuff without any problems. Yesterday the protective silicon sleeve finally arrived so I inserted my SIM card and finally started using it as a proper phone. But today, all of a sudden it didn't want to turn on again. I had used the phone 10 minutes before (storing a contact).
I opened the housing again and checked if I could see anything loose, or not making proper contact but didn't see anything.
It still won't turn on again.
Is this HD2 deceased? The battery is fully charged BTW (and I tried another battery).
Anything I could try?
Triple check and make sure all battery pins are straight. when the battery is inserted, they need to be pressed down and inwards towards the middle of the phone. Be sure you don't have one being forced up or anything like that. I'd re open the case one more time and slightly bend the ground prongs on the board and flex cable assemblies back up just a hair to make sure they make good contact. Other than that the phone can actually power on without the back housing on at all so grounding to get it to power on isn't that crucial.
I cannot turn on my LG G2 after putting a new battery in it that I bought of LG.
I have tried to hold the vol down and power button together will plugging into power source but to no avail.I have held just the power button while plugging into power but to no avail.
Any help would be much appreciated.
Try to carefully check the electric contacts: re-open the case and press enough all the electrical connectors. I solved this way...
There may also be a chance of damaged battery (it is hard to find an original one): in this case you have to ask for replacement.
MotoGix said:
Try to carefully check the electric contacts: re-open the case and press enough all the electrical connectors. I solved this way...
There may also be a chance of damaged battery (it is hard to find an original one): in this case you have to ask for replacement.
Click to expand...
Click to collapse
I have checked all the connectors umpteen times and they all click into place.
I got the battery from LG so it is a genuine LG battery has stated in my post.
I had same problem with my Optimus G
I change the battery last year with a battery I bought off Ebay without any problems.I then found out the battery was not genuine (not holding its charge) and I bought a battery from LG.When I replaced the battery I bought off Ebay with the battery I bought from LG my G2 would not turn on.
Is there a tool which I could use to test my G2 phone (download a tool/app)?
Could it be an hardware issue?
Shlong7 said:
I change the battery last year with a battery I bought off Ebay without any problems.I then found out the battery was not genuine (not holding its charge) and I bought a battery from LG.When I replaced the battery I bought off Ebay with the battery I bought from LG my G2 would not turn on.
Is there a tool which I could use to test my G2 phone (download a tool/app)?
Could it be an hardware issue?
Click to expand...
Click to collapse
I bought the battery on ebay, since I don't have access to any LG store.
After a first failed attempt, I removed and reinserted the battery and the phone turned on. I attributed the issue to an electric contact but my assumption could be wrong and there were likely other reasons...
Unfortunately, I am not able to suggest to you any workaround. You may ask directly to LG, where you bought the battery...
There is a hidden menu (3845#*802#) for testing battery and charge efficiency, but phone must be turned on, then you have to use the old battery.
Anyway, I don't think it is an hardware issue.
I bought another battery off eBay to see if it was the battery but the phone still won't turn on.
It sounds not good... Are some electrical contact pins of the phone possibly damaged or dirty?
MotoGix said:
It sounds not good... Are some electrical contact pins of the phone possibly damaged or dirty?
Click to expand...
Click to collapse
No,they look alright.
I did press the power button on the phone before I put the white camera cover on and the main white phone cover on.
So much the better!
What possible think could I have damaged?
Shlong7 said:
What possible think could I have damaged?
Click to expand...
Click to collapse
Sorry, I understood you solved the problem (misunderstanding due to my poor English).
Look carefully at all the pins of the connectors (screen, motherboard, etc.): Are they alright or bent over?
If they are bent over you can try to straighten them with an electronic nipper.
On the contrary, if they are OK, my advice is to go to the LG service center (for example where you bought the new original battery) and ask them to check the phone hardware. Perhaps it is just a stupid issue, easy to solve. It is still a great phone, even though it is 5 five years old, and it's worth it. It is even faster of my most recent Motorola X Play...
Unfortunately, I have not enough experience with this phone, so I can't help you anymore: I own it since few weeks only, because it is my wife old phone. I was just lucky in substituting battery with negligeble issues!
I have looked at all the pins on each connector and they look all in line.
May I have damaged the charging ribbons when I pressed the power button before I put the camera cover and the phone cover back on.
I have noticed the black tape on the camera cover (https://www.ebay.co.uk/itm/LG-G2-Ca...368363?hash=item2833f4ba6b:g:FWsAAOSwIaFZFH5k) is damaged,could this cause my G2 to not turn on?
Shlong7 said:
I have looked at all the pins on each connector and the look all in line.
May I have damaged the charging ribbons when I pressed the power button before I put the camera cover and the phone cover back on.
I have noticed the black tape on the camera cover (https://www.ebay.co.uk/itm/LG-G2-Ca...68363?hash=item2833f4ba6b:g:FWsAAOSwIaFZFH5k) is damaged,could this cause my G" to not turn on?
Click to expand...
Click to collapse
I don't think so: the power button acts on a switch; you can press on the switch in many other ways, with the same results...
Check instead the electric contact on the camera cover (see 2nd image of the camera cover, top-left of the above link): it is a sort of electrical bridge (closes the circuit). You may verify if it works right by means of a multimeter (null resistance).
MotoGix said:
I don't think so: the power button acts on a switch; you can press on the switch in many other ways, with the same results...
Check instead the electric contact on the camera cover (see 2nd image of the camera cover, top-left of the above link): it is a sort of electrical bridge (closes the circuit). You may verify if it works right by means of a multimeter (null resistance).
Click to expand...
Click to collapse
Im not good at using multi-meters.
What should I set the range of the multi-meter when testing the electrical bridge on the camera cover?
What should the multi-meter read when testing the electrical bridge to see if it works?
You should simply get zero resistance. Multimeters are easy to use: at first, select to measure resistance, by setting the highest sensitivity (the smallest full-scale), then measure the resistance. There are many tutorial on YouTube.
Please, consider it is possible this is not the problem!
Anyway, I'd suggest you warmly to send the phone at the service centre.
Sent from my LG-D802 using XDA Labs
Yes,I do get zero resistance when testing the electrical bridge on the camera cover.
It will cost alot to have it repaired at the service centre,probably not worth having my G2 repaired bc the battery cost me £40.
You're right, it might not be worth it.
Before throwing away the phone, try to ask where you bought the battery. Perhaps they will find a solution for you.
Another phone with similar specs costs more than 300£, for sure; moreover, most of phones have the cover in glass or alluminium and are more delicate than G2...
Sent from my LG-D802 using XDA Labs
I have been in touch with LG where I bought the battery from and they said the repair would cost more than I paid for the phone,which I predicted.
I don't think the battery is faulty (I bought another battery of eBay and the phone still won't turn on),unless the eBay battery is faulty too.
Could I have damaged the power switch if I pulled out the power switch connector while the battery was connected?
I am so sorry.
But, just for curiosity, what is the damage?
So my brother's zuk z2 has been broken for months now, and no repair shop could repair the phone.
I did a lot of digging and i found out that zuk z2 has a problem with quick charge 3.0 (It technically supports it but it doesn't have the necessary hardware for it)
If your zuk z2 (plus) has these symptomes this fix is guaranteed to work
Not charging.
Not turning on (Sometimes it might turn on).
Notification light blinking.
Heating in the lower part of the phone near the charging port. (If your zuk doesn't do that, then removing the cx chip will only disable fast charging)
The problem:This tiny chip with cx on it: https://i.imgur.com/YD8Eh2b.jpg
This chip is responsible for quick charge and it only supports quick charge from the original charger (that is what i was told).
When charging with an qc charger it may short out. That is where the heat is coming from.
The solution
You need to remove that chip.
You can just pry on it with a screwdriver and it pops out like its meant to do that.
Anyone can do this procedure at home, but you need a phone repair kit(<1$ online).
Or you can take your phone to the local repair guy and send them a link to this guide.
If you decide to do this by yourself i advise you to watch a teardown video, because there are some plastic tabs that you don't want to break.
1) First off, remove the sim card tray and then you need to remove the back glass, use a hair drier at the lowest setting and heat the lower part of the back of the phone (where the zuk logo is) around the perimeter.
When the glass is hot, use a suction cup to lift the glass and then use a plastic tool (only plastic tools) to slice the adhesive.
Try the suction cup method 3-4 times with heating, because the suction cup may not be strong enough to lift the glass up.
If the suction cup is not strong enough to lift the glass away, use a very thin and short piece of metal, wedge it between the glass and the plastic body (this will slightly damage the plastic) and the glass should pop out if it's hot.
Be very careful at the left upper side of the phone (the camera side) because there is the volume and power button ribbon and the battery ribbon. You don't want to damage those.
This is maybe the hardest part of this teardown.
This is how it looks like once the back cover is off: https://i.imgur.com/XGD5m7F.jpg
2) Because the chip is on the back side of the motherboard you will need to remove almost every component except the battery and some other smaller components.
Remove all screws.
Attention! one screw is under the battery ribbon.
Then try to remove the plastic.
The top plastic piece needs to be pulled from the opposite side of the back camera because there is a plastic latch near the back camera.
Pull that plastic piece up and then to the left (away from the back camera).
The lower plastic piece should be pulled from the upper most part, but it should be pulled first up and then pulled towards the top side.
If the piece doesn't move you need to remove residual adhesive or try to remove the lower plastic piece from the headphone jack side.
This is how it should look like without the plastic top cover: https://i.imgur.com/qEtXTg7.jpg
This is how it looks like without the bottom plastic piece:https://i.imgur.com/RlVhDQK.jpg
The problematic chip is in the red circle, but it is on the other side of the motherboard.
3)Unclip the connections, the antenna connectors, and the selfie camera.
By this point you should have removed the sim card tray, if not remove it NOW.
4)Remove the motherboard with the back camera (its held with some copper tape).
Inspect the charging port.
It should look something like this: https://i.imgur.com/bKiN5tG.jpg
The chip is very small.
This is how the chip looks like when removed: https://i.imgur.com/fCSJBds.jpg
This is the chip you want to remove: The one with CX on it!
This chip: https://i.imgur.com/YD8Eh2b.jpg
5)Remove the chip with something made out of metal, like a screwdriver.
6)Reassemble the phone and enjoy your charging phone.
Also this is why you would want to do it yourself.
This is what a "repair guy" did to the phone: https://i.imgur.com/5BiMn6s.jpg
He said that there was a short on the motherboard and the phone is completely dead.
The phone works, but now i don't have a power/volume button.
He obviously used a metal tool, as seen by the scratches left on the metal inside the phone.
So don't use a metal tool.
Edit: Removing this chip will only disable fast charging, if your device is perfectly working, or has different symptomes, don't remove this chip.
Edit2: The thread was broken,(only one image was showing). My dumb ass inserted the images wrongly.
Will removing this enable quick charge 3.0 support on our device ?
troublesom said:
Will removing this enable quick charge 3.0 support on our device ?
Click to expand...
Click to collapse
No
My phone is bot charging. So will removing this chip make it charging again??
And how it is so that without that chip it will work properly??
Does OTG work after removing it?
Sandeep7974 said:
My phone is bot charging. So will removing this chip make it charging again??
And how it is so that without that chip it will work properly??
Click to expand...
Click to collapse
Don't remove it .it regulates charging speed and safety
spandu500 said:
Does OTG work after removing it?
Click to expand...
Click to collapse
It does.
zuk z2 plus
thanks bro
its work for me
It did not work for me, unfortunately. I removed the black part of the chip and the problem continued, just stopped blinking the led and vibrated continuously. I removed the silver part of the chip and nothing, it continued in the same way without charging. But I figured out a way to charge it, I entered the TWRP menu, (by clicking on the power button to enter the recovery it would turn off, then I pressed the button to enter the recovery, it hung up and when it was already on the twrp). At the TWRP recovery I connected the charger, and then the ZUK started charging the battery more slowly than normal, but it charged 100%. I have it for at least 2 years, I always used the original charger, only 2 or 3 months I changed the cable that broke. So I believe this is not a hardware problem, but a software problem. I use the Cardinal rom, but it seems that this happens in any rom ...
Isaías J. said:
It did not work for me, unfortunately. I removed the black part of the chip and the problem continued, just stopped blinking the led and vibrated continuously. I removed the silver part of the chip and nothing, it continued in the same way without charging. But I figured out a way to charge it, I entered the TWRP menu, (by clicking on the power button to enter the recovery it would turn off, then I pressed the button to enter the recovery, it hung up and when it was already on the twrp). At the TWRP recovery I connected the charger, and then the ZUK started charging the battery more slowly than normal, but it charged 100%. I have it for at least 2 years, I always used the original charger, only 2 or 3 months I changed the cable that broke. So I believe this is not a hardware problem, but a software problem. I use the Cardinal rom, but it seems that this happens in any rom ...
Click to expand...
Click to collapse
I am sorry for you.
I really don't know if there can be such a software problem. (have you tried clean flashing?)
Did your phone heat up a lot when charging in the usb area?
Did the procedure fix the heating?
If it charges in any way, that is not a hardware problem.
Are you using any kind of rom tweaking apps (like kernel adiutor or smartpack kernel manager) if yes check in the battery section if charging is enabled or just uninstall them.
Try flashing the stock rom.
I know it is a pain in the butt to try all of these things, especially if your zuk is your primary phone (my zuk is not my primary phone and it has a problem with flashing custom roms that i haven't fixed in months)
I didn't try the original rom, it's too bad. It also has no kernel or overclocking app. Moreover, the device did not heat up in the usb area, only in the area of the processor, when it was charging, was always like this. What made a difference before the problem was that it got too hot, especially playing pupg, which I've done a lot in the last few days, and then he hung up. He always hung up, but it was rare to happen, days before the problem he started to hang up almost every day.
But I have something new, I saw the gmail notification of your message yesterday, so today I came to respond. The device was in the TWRP menu, charging, I turned on the system and the led turned on. As I write the battery charged 10%!
JoraForever said:
I am sorry for you.
I really don't know if there can be such a software problem. (have you tried clean flashing?)
Did your phone heat up a lot when charging in the usb area?
Did the procedure fix the heating?
If it charges in any way, that is not a hardware problem.
Are you using any kind of rom tweaking apps (like kernel adiutor or smartpack kernel manager) if yes check in the battery section if charging is enabled or just uninstall them.
Try flashing the stock rom.
I know it is a pain in the butt to try all of these things, especially if your zuk is your primary phone (my zuk is not my primary phone and it has a problem with flashing custom roms that i haven't fixed in months)
Click to expand...
Click to collapse
And the problem returns.
thank you i try remove the cx chip and it work after remove it charging decreased a bit from 2100 ma to 1980 ma and volt from 4.4 to 4.1:fingers-crossed::fingers-crossed:
Working, thanks!
it worked for me! many thanks!
JoraForever said:
So my brother's zuk z2 has been broken for months now, and no repair shop could repair the phone.
I did a lot of digging and i found out that zuk z2 has a problem with quick charge 3.0 (It technically supports it but it doesn't have the necessary hardware for it)
If your zuk z2 (plus) has these symptomes this fix is guaranteed to work
Not charging.
Not turning on (Sometimes it might turn on).
Notification light blinking.
Heating in the lower part of the phone near the charging port. (If your zuk doesn't do that, then removing the cx chip will only disable fast charging)
The problem:This tiny chip with cx on it: https://i.imgur.com/YD8Eh2b.jpg
This chip is responsible for quick charge and it only supports quick charge from the original charger (that is what i was told).
When charging with an qc charger it may short out. That is where the heat is coming from.
The solution
You need to remove that chip.
You can just pry on it with a screwdriver and it pops out like its meant to do that.
Anyone can do this procedure at home, but you need a phone repair kit(<1$ online).
Or you can take your phone to the local repair guy and send them a link to this guide.
If you decide to do this by yourself i advise you to watch a teardown video, because there are some plastic tabs that you don't want to break.
1) First off, remove the sim card tray and then you need to remove the back glass, use a hair drier at the lowest setting and heat the lower part of the back of the phone (where the zuk logo is) around the perimeter.
When the glass is hot, use a suction cup to lift the glass and then use a plastic tool (only plastic tools) to slice the adhesive.
Try the suction cup method 3-4 times with heating, because the suction cup may not be strong enough to lift the glass up.
If the suction cup is not strong enough to lift the glass away, use a very thin and short piece of metal, wedge it between the glass and the plastic body (this will slightly damage the plastic) and the glass should pop out if it's hot.
Be very careful at the left upper side of the phone (the camera side) because there is the volume and power button ribbon and the battery ribbon. You don't want to damage those.
This is maybe the hardest part of this teardown.
This is how it looks like once the back cover is off: https://i.imgur.com/XGD5m7F.jpg
2) Because the chip is on the back side of the motherboard you will need to remove almost every component except the battery and some other smaller components.
Remove all screws.
Attention! one screw is under the battery ribbon.
Then try to remove the plastic.
The top plastic piece needs to be pulled from the opposite side of the back camera because there is a plastic latch near the back camera.
Pull that plastic piece up and then to the left (away from the back camera).
The lower plastic piece should be pulled from the upper most part, but it should be pulled first up and then pulled towards the top side.
If the piece doesn't move you need to remove residual adhesive or try to remove the lower plastic piece from the headphone jack side.
This is how it should look like without the plastic top cover: https://i.imgur.com/qEtXTg7.jpg
This is how it looks like without the bottom plastic piece:https://i.imgur.com/RlVhDQK.jpg
The problematic chip is in the red circle, but it is on the other side of the motherboard.
3)Unclip the connections, the antenna connectors, and the selfie camera.
By this point you should have removed the sim card tray, if not remove it NOW.
4)Remove the motherboard with the back camera (its held with some copper tape).
Inspect the charging port.
It should look something like this: https://i.imgur.com/bKiN5tG.jpg
The chip is very small.
This is how the chip looks like when removed: https://i.imgur.com/fCSJBds.jpg
This is the chip you want to remove: The one with CX on it!
This chip: https://i.imgur.com/YD8Eh2b.jpg
5)Remove the chip with something made out of metal, like a screwdriver.
6)Reassemble the phone and enjoy your charging phone.
Also this is why you would want to do it yourself.
This is what a "repair guy" did to the phone: https://i.imgur.com/5BiMn6s.jpg
He said that there was a short on the motherboard and the phone is completely dead.
The phone works, but now i don't have a power/volume button.
He obviously used a metal tool, as seen by the scratches left on the metal inside the phone.
So don't use a metal tool.
Edit: Removing this chip will only disable fast charging, if your device is perfectly working, or has different symptomes, don't remove this chip.
Edit2: The thread was broken,(only one image was showing). My dumb ass inserted the images wrongly.
Click to expand...
Click to collapse
Thank you so much for this post, I have just done this and my zuk is charging again! Thank you sir for this post! :fingers-crossed: :good:
I deleted this chip, but after that it stopped connecting to the PC. The drivers all stood, the cable was working. Then I had the urge to change the firmware to https://forum.xda-developers.com/le...rom-flyme-7-3-0-0a-zuk-z2-plus-bylzy-t3923861, but he went into the bootloop, and then probably the battery played Darth Vader in Return of the Jedi.
Removal of the chip fixed my ZUK as well!
Thank you TS!!!
I must really thank you for the guide. My phone stopped charging suddenly, tried different cables, chargers, etc and none worked. I was about to go buy a new phone and somehow stumbled on this thread. After a few days getting the courage to open the phone, i did it, followed the guide and now it is charging!!
Thank you very much!!!
Big thanks, my zuk is now working again :good: