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Hey guys, I created this thread to chronicle my attempt in fixing my Galaxy Note's broken USB dock connector.
The problem: The phone charges only when off. MTP/USB mass storage won't work. On some roms Car mode wackiness ensued. It seemed like it was possessed; exactly like another persons detail of the problem.
Attempt to fix it: Contacted three wholesalers in China at Alibaba.com for the dock connector for Galaxy Note. Waiting on response right now.
So far I have eleminated everything in my troubleshooting. I've tried multiple custom roms and went and tried two different stock roms with no luck. I also have tried plugging in different kinds of usb cables. I also tried plugging them in different computers.
Anyone can post they're problem-->solution here for future reference.
I found this on google and I thought it was very helpful. HERE IS THE SERVICE MANUAL FOR GALAXY NOTE:
http://letitbit.net/download/55297....68026c2/Samsung_N7000_Service_Manual.rar.html
http://www.samsungparts.ru/2012/01/%D1%80%D0%B0%D0%B7%D0%B1%D0%BE%D1%80%D0%BA%D0%B0-samsung-gt-n7000/#more-2963
andruyd said:
Hey guys, I'm created this thread to chronicle my attempt in fixing my Galaxy Note's broken USB dock connector.
The problem: The phone charges only when off. MTP/USB mass storage won't work. On some roms Car mode wackiness ensued. It seemed like it was possessed; exactly like another persons detail of the problem.
Attempt to fix it: Contacted three wholesalers in China at Alibaba.com for the dock connector for Galaxy Note. Waiting on response right now.
So far I have eleminated everything in my troubleshooting. I've tried multiple custom roms and went and tried two different stock roms with no luck. I also have tried plugging in different kinds of usb cables. I also tried plugging them in different computers.
Anyone can post they're problem-->solution here for future reference.
Click to expand...
Click to collapse
I am afraid there is no solution for this type of behavior at this point. I am too had the same experience.
I am awaiting for another responds email from Germany(where my Note came from) to send mine in for a repair. Until then, I can still use my Note with external battery/charger that I got from Amazon.
good luck-
Are guys plugging the cord in upside down or something? Ive had galaxy s, sgs2 and now note since release day and havent experienced this issue.
GALAXY NOTE
Did you guys try use difference charger? I face the same problem once where the charging mode keep changing to dock mode on and off while charging. After i change it use others charger (spare), now everything is ok.
My theory is that the charger started to malfunction n produce too low or too high voltage which trigger the dock mode..my 2 cents.. ;P correct me if im wrong..
Sent from my GT-N7000 using XDA App
naimmkassim said:
Did you guys try use difference charger? I face the same problem once where the charging mode keep changing to dock mode on and off while charging. After i change it use others charger (spare), now everything is ok.
My theory is that the charger started to malfunction n produce too low or too high voltage which trigger the dock mode..my 2 cents.. ;P correct me if im wrong..
Sent from my GT-N7000 using XDA App
Click to expand...
Click to collapse
I can assure you it's not the charger or the data cable, as I have plenty laying around. My money is on the logic board.
naimmkassim said:
Did you guys try use difference charger? I face the same problem once where the charging mode keep changing to dock mode on and off while charging. After i change it use others charger (spare), now everything is ok.
My theory is that the charger started to malfunction n produce too low or too high voltage which trigger the dock mode..my 2 cents.. ;P correct me if im wrong..
Sent from my GT-N7000 using XDA App
Click to expand...
Click to collapse
After having 2 SGNote units being bricked and (luckily) replaced with a new unit everytime, I found that the root cause for the SGNote being bricked is a weak USB interface and protection circuit. At first I thought I just messed up the rooting process that's why I bricked the device. When my 2nd replacement unit also got bricked, I traced back that the only common denominator was a rogue iphone charger that I used to recharge the device. Knowing that the weakness of the SGNote is the USB circuit, I'm now careful to use no other charger but the stock charger that came with the unit.
wolfmanx said:
After having 2 SGNote units being bricked and (luckily) replaced with a new unit everytime, I found that the root cause for the SGNote being bricked is a weak USB interface and protection circuit. At first I thought I just messed up the rooting process that's why I bricked the device. When my 2nd replacement unit also got bricked, I traced back that the only common denominator was a rouge iphone charger that I used to recharge the device. Knowing that the weakness of the SGNote is the USB circuit, I'm now careful to use no other charger but the stock charger that came with the unit.
Click to expand...
Click to collapse
Yeah this makes sense.
Anyway this is the part I'm trying to acquire:
http://www.alibaba.com/product-gs/521953864/Dock_Connector_Charging_Port_Flex_Cable.html
http://www.alibaba.com/product-gs/521398121/For_Sansung_GALAXY_NOTE_N7000_I9220.html
http://www.alibaba.com/product-gs/521398854/I9220_charger_flex_for_Samung.html
I strongly believe that the Galaxy S2 USB problems are of similar nature and the solution was to replace the USB dock connector. This gives me a lot of hope since it's easy enough to do. There is no soldering involved AFAIK since it just came off during the Galaxy Note teardown video on youtube @2:28 and @3:36 (ttp://www.youtube.com/watch?v=UFDr3PQMTxw). Correct me if I'm wrong.
its definitely a hardware issue and has been traced to the usb port inside the phone. I have the same issue and I am also waiting for the part to replace the damaged one inside my phone.
here is what I am doing to make my phone function-able:
When you connect the usb cord to charge the phone you have to press it down hard and then slide it out. this will temporarily fix the physical usb port pins and allow your phone to function normally. you have to do this every time when you connect and disconnect the usb cord. I will use my phone like this until the part becomes available to buy. I have a feeling, this phone is very delicately designed and can get bricked all by itself.
My note does not charge with Three of my HTC chargers neither does it charge with another car charger.but charges fine with the Samsung charger.has sometimes issues with otg with Samsung otg cable and another otg cable. Even today when I used a Samsung otg cable to connect my note with a Samsung galaxy s2 via a Samsung USB cable, the otg features did not work, the s2 just said mtp and note said unknown device connected! So there are issues with this USB on the note.
I saw a youtube video for Galaxy S2 where he suspected that it was a malfunctioning USB dock. He replaced it and all the symptoms were gone. I'm really going full press on this and hopefully I can help myself and others who have similar problems. I've read up on USB problems the last 2 days from Galaxy Note users and Galaxy S2. They are very similar in design other than the screen/stylus.
bannork said:
I am afraid there is no solution for this type of behavior at this point. I am too had the same experience.
I am awaiting for another responds email from Germany(where my Note came from) to send mine in for a repair. Until then, I can still use my Note with external battery/charger that I got from Amazon.
good luck-
Click to expand...
Click to collapse
Please keep us updated on your progress.
BTW to the folks having USB issues, are you having unusual battery drain? What other quirks have you encountered?
Has anyone compared the shape of the USB dock connector for Galaxy S, Galaxy S2, Galaxy Nexus and Galaxy Note? I wonder if they are all the same shape and if I should try and look at replacing that part only? If it is the same then I will get this http://cnn.cn/shop/samsung-i9000-galaxy-microusb-connector-p-10745.html since it's cheap and I've got nothing to lose if it doesn't work.
Looks like we have a new design flaw here..so, how long does it take for you guys to experience this problem from date purchase your note?
Mine already 1 month purchase and not having this problem.
Sent from my GT-N7000 using XDA App
aftabbabar said:
its definitely a hardware issue and has been traced to the usb port inside the phone. I have the same issue and I am also waiting for the part to replace the damaged one inside my phone.
here is what I am doing to make my phone function-able:
When you connect the usb cord to charge the phone you have to press it down hard and then slide it out. this will temporarily fix the physical usb port pins and allow your phone to function normally. you have to do this every time when you connect and disconnect the usb cord. I will use my phone like this until the part becomes available to buy. I have a feeling, this phone is very delicately designed and can get bricked all by itself.
Click to expand...
Click to collapse
I fully agree that it is a hardware issue. Samsung should come up with an extra dongle or maybe a protection circuit integrated with the USB cable that should be used in conjunction with the SGNote. Otherwise, this issue will just keep on repeating and they will end up with a bunch of bricked units on their hands.
If only I didn't like the display on this device, I would have opted for a change item instead of a replacement unit.
I still have the rogue iPhone charger and when I use it to charge an iPhone it keeps on repeatedly bringing up the charging battery icon on and off but it doesn't destroy or brick the phone. But when I connected it to the SGNote, it bricked it. I did it on 2 units. And it will surely brick any other SGNote unit I connect this charger to. I'm willing to demo this to Samsung to prove the point of their weak USB interface circuitry.
wolfmanx said:
...
If only I didn't like the display on this device, I would have opted for a change item instead of a replacement unit.
I still have the rouge iPhone charger and when I use it to charge an iPhone it keeps on repeatedly bringing up the charging battery icon on and off but it doesn't destroy or brick the phone. But when I connected it to the SGNote, it bricked it. I did it on 2 units. And it will surely brick any other SGNote unit I connect this charger to. I'm willing to demo this to Samsung to prove the point of their weak USB interface circuitry.
Click to expand...
Click to collapse
Like you I got the Note for the screen size because I don't like to read in small screens. I haven't had a phone in 6 years!!!! I've seen phones come and go. The screen size of the Note made it comfortable enough to read anything (PDF, comics, web pages, ebooks).
How sure are you guys that it is indeed the USB circuitry and not just the metal dock? To be honest I'm not sure right now.
andruyd said:
Like you I got the Note for the screen size because I don't like to read in small screens. I haven't had a phone in 6 years!!!! I've seen phones come and go. The screen size of the Note made it comfortable enough to read anything (PDF, comics, web pages, ebooks).
How sure are you guys that it is indeed the USB circuitry and not just the metal dock? To be honest I'm not sure right now.
Click to expand...
Click to collapse
Oh my! Looking at the charger flex assembly pictures, all I see are a bunch of passive components for protection. I see no active components on this board that would likely be used for over-voltage or over-current protection. I'm not sure if it's on the main board though. But normally protection circuitry are placed right next to the connector for them to be effective. There seems to be a lot of space on the board for even a single-chip USB protection circuit but the space hasn't been utilized for such.
I'd be willing to bet you that your problems will still be the same even after replacement of this flex assembly.
wolfmanx said:
Oh my! Looking at the charger flex assembly pictures, all I see are a bunch of passive components for protection. I see no active components on this board that would likely be used for over-voltage or over-current protection. I'm not sure if it's on the main board though. But normally protection circuitry are placed right next to the connector for them to be effective. There seems to be a lot of space on the board for even a single-chip USB protection circuit but the space hasn't been utilized for such.
I'd be willing to bet you that your problems will still be the same even after replacement of this flex assembly.
Click to expand...
Click to collapse
Well I hope you are wrong or else I'm screwed over an $800 phone. Did you see that in the Service Manual? I've linked the service manual on the first post. QME02 is the part I want to replace.
naimmkassim said:
Looks like we have a new design flaw here..so, how long does it take for you guys to experience this problem from date purchase your note?
Mine already 1 month purchase and not having this problem.
Sent from my GT-N7000 using XDA App
Click to expand...
Click to collapse
For me it was a month and a half before it started going crazy.
bannork said:
For me it was a month and a half before it started going crazy.
Click to expand...
Click to collapse
For me, about 5 minutes after I plug-in the rogue iPhone charger... I did it twice... and luckily, since I still have warranty, I got both units replaced.
I strongly suggest for everybody not to use any other USB charger apart from the stock charger that came with the SGNote. Of course, this excludes plugging it into a PC or laptop as they should be fairly safe and well-protected (at least for name-brand units).
If you're going to use the stock charger, I would recommend plugging the USB cable in the charger and plugging-in the charger in the wall socket first BEFORE plugging-in the mini-USB connector to your SGNote. This minimizes the chances of having voltage spikes being transmitted through the USB connections into the SGNote, especially during the actual plugging of the charger to the wall socket. This is to be on the safe side in the case that the stock charger design is also flawed and doesn't prevent transients from reaching the load unit itself.
Is there a website or something from which we can call Samsung's attention on this matter? If indeed transients are the cause of the USB problems then all they need to do on the SGNote is to redesign the USB board assembly and stick it into units that have not been affected yet. This entails a product recall or as I mentioned in my previous post, maybe to offer us SGNote buyers a dongle or a USB cable with the protection circuitry.
---------- Post added at 11:05 PM ---------- Previous post was at 10:53 PM ----------
andruyd said:
Well I hope you are wrong or else I'm screwed over an $800 phone. Did you see that in the Service Manual? I've linked the service manual on the first post. QME02 is the part I want to replace.
Click to expand...
Click to collapse
Yup on the service manual and on the links to alibaba that you provided on your previous posts. I looked at both sides of the sub-assembly and only found passive components.
Well I'm using a 2 amp charger from ebay for charging downstairs; a HTC 1 amp charger in the bedroom; the 1 amp Samsung charger in work, but I also plug it into the 800 mah charger that also charges an extra battery in situ. ... she's till working fine.
Right now, usb mass storage or MTP is totally non-functional for me. I'm still glad USB charging is working. I hope that parts holds up till I get a replacement for it.
Thank goodness for wireless and FTP!
My KF has a hard time charging as the port has a loose fit on the charger adapter. I have to wiggle it just right for the charge indicator to come on. I'd like to remove the back so I can see why the charger plug does'nt fir right. Anyone have thier back off ? Thanks..
Nope. Sorry. Flashing a new ROM on it is one thing... but I find that when I take things apart and put them back together again I either have left over pieces or broken pieces.
I have seen a video of someone deconstructing the kindle fire with a seemingly universal tool for dealing with clips on youtube, you might want to search for it.
For what it's worth, my usb cable is loose while my power cable isn't. Not sure I like the micro-usb standard... seems a little flimsy.
gadgetman13 said:
Nope. Sorry. Flashing a new ROM on it is one thing... but I find that when I take things apart and put them back together again I either have left over pieces or broken pieces.
I have seen a video of someone deconstructing the kindle fire with a seemingly universal tool for dealing with clips on youtube, you might want to search for it.
For what it's worth, my usb cable is loose while my power cable isn't. Not sure I like the micro-usb standard... seems a little flimsy.
Click to expand...
Click to collapse
Flimsy, yes.. Thanks for your reply, sounds like me..LoL
http://www.ifixit.com/Teardown/Amazon-Kindle-Fire-Teardown/7099/1
Houndog101 said:
My KF has a hard time charging as the port has a loose fit on the charger adapter. I have to wiggle it just right for the charge indicator to come on. I'd like to remove the back so I can see why the charger plug does'nt fir right. Anyone have thier back off ? Thanks..
Click to expand...
Click to collapse
I know you probably don't want to hear this, but I'd send it back for and get it replaced. Taking off the back will almost definitely void your warranty, and unless you are REALLY good with a soldering iron, you probably won't be able to fix it.
I was having the same problem and thought it was the port but it's actually the cables. The prongs on the micro-USB cables that secure it in the port are rooted in the base of the plug. Bending the metal plug back to its original flat position will put the prongs in a more exposed position providing a more secure fit. Bending it past horizontal will expose them even more. I found that an up angle micro-USB cable fits in in an orientation that causes less stress on the plug and prevents this problem from reoccurring.
Sent from my Kindle Fire using xda premium
3EyedPhish said:
I was having the same problem and thought it was the port but it's actually the cables. The prongs on the micro-USB cables that secure it in the port are rooted in the base of the plug. Bending the metal plug back to its original flat position will put the prongs in a more exposed position providing a more secure fit. Bending it past horizontal will expose them even more. I found that an up angle micro-USB cable fits in in an orientation that causes less stress on the plug and prevents this problem from reoccurring.
Sent from my Kindle Fire using xda premium
Click to expand...
Click to collapse
You,Sir, are a genius ... thank you sooooo much,,
hi
my son has wrecked my charger port and it will not charge my nexus
i would rma it but I've flashed a custom rom
any advice is grateful
google?
tried just came up with problems nothing about selling them.
if i remember correctly the easiest way would be to replace the entire micro usb board in your 7... assuming there's not too many retailers for nexus 7 tablet parts you would be better off buying a broken one off of ebay and swapping out.. OR depending on the severity of how bad it's broken strip apart one of your old devices you'll probably never use anymore & make friends with a soldering gun / iron
VivaLaCam92 said:
if i remember correctly the easiest way would be to replace the entire micro usb board in your 7... assuming there's not too many retailers for nexus 7 tablet parts you would be better off buying a broken one off of ebay and swapping out.. OR depending on the severity of how bad it's broken strip apart one of your old devices you'll probably never use anymore & make friends with a soldering gun / iron
Click to expand...
Click to collapse
i was hoping it would be a quick swap over like my sgs2
its a separate pcb connected to the main board via a ribbon cable.
I've not looked into swapping it just need to see it i can source the part first.
might have to un solder the part and like you say take it off a old phone or something. problem is im not the best at soldering ha
Ok, so the usb port on my Nook Color finally broke making it impossible to charge anymore.
I have found a place selling replacement motherboards for $70, looks to be a simple swap.
Is it worth trying to fix it / replace board?
Thanks
Snoshrk
Snoshrk said:
Ok, so the usb port on my Nook Color finally broke making it impossible to charge anymore.
I have found a place selling replacement motherboards for $70, looks to be a simple swap.
Is it worth trying to fix it / replace board?
Thanks
Snoshrk
Click to expand...
Click to collapse
Not when you can find refurbished devices for not much more. I got one for $59 from B&N, but that was a special Thanksgiving promotion. Shop around.
Sent from my Nook HD+ running CM10 on Hybrid SD
! FACEPALM !
well I took my son's trusty NC in to a tech repair shop on the off chance the tech could solder the usb port back on...Long Story Short... as I picked the wall charger and cable up off my passenger seat the plug on the cable FELL APART!
Cable failure NOT NC port failure! Doh!
My son's a happy camper again
I'm used to seeing cables fall apart. I'm probably on my fourth cable now.
As for fixing the mobo? I'd spend the money on a Nexus 7, or some other tablet, rather than going the Nook Color/Tablet route, or getting my Nook Color (1st Gen) fixed when/if it goes.
At the time I bought it, there were really no tablet options worth speaking about, except for the 1st Gen. iPad, and I wan't about to spend that kind of coin.
Good luck whatever you choose!
Robert
Snoshrk said:
! FACEPALM !
well I took my son's trusty NC in to a tech repair shop on the off chance the tech could solder the usb port back on...Long Story Short... as I picked the wall charger and cable up off my passenger seat the plug on the cable FELL APART!
Cable failure NOT NC port failure! Doh!
My son's a happy camper again
Click to expand...
Click to collapse
Hi Everyone!
Unfortunatelly My x720's USB connector burned few weeks ago during fast charging.. It is burned, the connector is fuzed and I feel the burning smell, but it was already too late.
So the usb port got unusable, I can not use it for charging, and I am not able to connect to my phone!
I wanted to buy a new USB flex board but unfortunatelly there is no full (factory) version on the market!
I searched it many hours on the net, but there are only cheap ( remanufactured) version of it.
They have many missed parts, just have their solder points on the board, so these do not support OTG and fast charging.. I can not understand why can't make full version boards for a higher price, these versions are unhelpful items.
https://ibb.co/kYypx8
https://ibb.co/fnH4VT
https://ibb.co/fZM9x8
So I bought only USB C connectors and I will try to replace it on the original board!
I thing it will be a hard work, but I hope it will succeed.
If not, I have to buy a used phone for parts, and I will take out the USB board from it.
As I see, the X722 have the same flex board!
So I would buy a hard bricked x722 for parts for a good price!
Just very important to me that its USB connector be in a good condition!! Do someone would sell it??
I know unfortunatelly there are lots of users who have hard bricked dead x722...
So if you read this lines and you can help me, please write me, and I hope we can make a deal!
Thanks
Daniel
Hi, exactly the same happened to me, the USB port of my leeco was burned. I do not know if it would be because of the usb cable c stock that brings (bad quality). But you'd be surprised if I told you that, shortly after the usb port c burned down, I looked more closely at port C and there was melted black plastic on the pins of the connector. Then clean the connector with a fine needle (carefully), getting rid of the plastic, the remains are cleaned with cotton and a little isopropyl alcohol (which leaves no traces when it evaporates). After doing all the above, I was surprised when I plugged in the headphones and it worked, in the end I tried another cable type C first with the PC and it worked (it was recognized by the normal PC), then I took a chance with another charger I had at home (not the Leeco charger) and it worked ... I had no problem loading it. You could try it ..!
Danika256 said:
Hi Everyone!
Unfortunatelly My x720's USB connector burned few weeks ago during fast charging.. It is burned, the connector is fuzed and I feel the burning smell, but it was already too late.
So the usb port got unusable, I can not use it for charging, and I am not able to connect to my phone!
I wanted to buy a new USB flex board but unfortunatelly there is no full (factory) version on the market!
I searched it many hours on the net, but there are only cheap ( remanufactured) version of it.
They have many missed parts, just have their solder points on the board, so these do not support OTG and fast charging.. I can not understand why can't make full version boards for a higher price, these versions are unhelpful items.
https://ibb.co/kYypx8
https://ibb.co/fnH4VT
https://ibb.co/fZM9x8
So I bought only USB C connectors and I will try to replace it on the original board!
I thing it will be a hard work, but I hope it will succeed.
If not, I have to buy a used phone for parts, and I will take out the USB board from it.
As I see, the X722 have the same flex board!
So I would buy a hard bricked x722 for parts for a good price!
Just very important to me that its USB connector be in a good condition!! Do someone would sell it??
I know unfortunatelly there are lots of users who have hard bricked dead x722...
So if you read this lines and you can help me, please write me, and I hope we can make a deal!
Thanks
Daniel
Click to expand...
Click to collapse
Card
https://www.ebay.com/itm/for-LeEco-...662149?hash=item2cd676aa85:g:g6cAAOSwTLpbLLb0
Flex cables
https://www.aliexpress.com/item/Bac...0a63-4886-a325-a2e4c99de900&priceBeautifyAB=0
Hi
@Kener97
Thanks for the response, I would try it, maybe it would work for me as well, but it is pretty melted..Unfortunatelly I have already disassembled the phone. I did not have another cables, but now I have two good quality fast charger USB C cables, but now I already can't try it! I happy that you can use your phone after the accident. Yeah, you're right the original cable has very bad quality. I had already thrown it into the trash.
So I decided If I have already disassembled the phone than I will try to replace the USB C port in the next week and then I'll se what can I do.
@tsongming
Thanks for the links, but as I wrote, these USB boards unfortunatelly are not the original items just cheap versions with many missed parts! Check the images!!
You can see teir solder points on the boards. So these don't support OTG and fast charging... Only the normal charging without communications. These are not an option to solve the problem. Maybe if I would replace the missed parts from the original board if the connector replace won't be suceed.. )
I will write the result!
Anyone, any other solutions? Or anyone known where could I buy the factory version boards?
Regards,
Daniel
Does somebody know If this problem occour on x722 too?
Perius said:
Does somebody know If this problem occour on x722 too?
Click to expand...
Click to collapse
I don't know, but the x722 and x720 is the same at the USB port and the poor quality USB cable as well!
I just recommend You don't use the fast charging especially don't with the original cable!
Danika256 said:
I don't know, but the x722 and x720 is the same at the USB port and the poor quality USB cable as well!
I just recommend You don't use the fast charging especially don't with the original cable!
Click to expand...
Click to collapse
Why everyone keep saying this for me it's perfect. I'm always using qc, and i dont have any problem, no shut downs, no huge heating(I'm even charging while playing)
Danika256 said:
I don't know, but the x722 and x720 is the same at the USB port and the poor quality USB cable as well!
I just recommend You don't use the fast charging especially don't with the original cable!
Click to expand...
Click to collapse
Thank you for the answer. Do you think the problem is the whole charge or Just the cable? Is It ok to use fast charge with third party cables?
Perius said:
Thank you for the answer. Do you think the problem is the whole charge or Just the cable? Is It ok to use fast charge with third party cables?
Click to expand...
Click to collapse
The cables are notoriously bad, one of my x727s was destroyed by a bad cable. Fortunately, Amazon exchanged it for a new phone.
We have 4 Leeco phones in our house. I have replaced all of the USB cables with highly rated cables, that have a replacement guarantee.
Sent from my Pixel XL using XDA Labs
tsongming said:
The cables are notoriously bad, one of my x727s was destroyed by a bad cable. Fortunately, Amazon exchanged it for a new phone.
We have 4 Leeco phones in our house. I have replaced all of the USB cables with highly rated cables, that have a replacement guarantee.
Sent from my Pixel XL using XDA Labs
Click to expand...
Click to collapse
So you use the stock charge with another cable?
Perius said:
So you use the stock charge with another cable?
Click to expand...
Click to collapse
Although some people recommend also switching the charger block. I don't agree with them, and think that is overkill. Its the stock cables that are garbage, not the the charging blocks.
We have four of these charging blocks and no issues with any of them. In fact, in late December, when the X727 that I returned had its usb card burned. My dad ( a retired electrical engineer) took apart one of the blocks and found it well constructed.
Next, Leeco charging blocks are approved by and meet Qualcomm standards.
https://www.qualcomm.com/media/documents/files/quick-charge-device-list.pdf
If there was an issue with the charging blocks on a large scale, would they still provide this publicly available list? No, I don't think so.
Should you decide to go ahead and replace the adapter anyway, The pdf list has a section with Qualcomm approved chargers under the "Premium Power Banks" section
---------- Post added at 04:14 PM ---------- Previous post was at 04:05 PM ----------
Danika256 said:
Hi
@Kener97
Thanks for the response, I would try it, maybe it would work for me as well, but it is pretty melted..Unfortunatelly I have already disassembled the phone. I did not have another cables, but now I have two good quality fast charger USB C cables, but now I already can't try it! I happy that you can use your phone after the accident. Yeah, you're right the original cable has very bad quality. I had already thrown it into the trash.
So I decided If I have already disassembled the phone than I will try to replace the USB C port in the next week and then I'll se what can I do.
@tsongming
Thanks for the links, but as I wrote, these USB boards unfortunatelly are not the original items just cheap versions with many missed parts! Check the images!!
You can see teir solder points on the boards. So these don't support OTG and fast charging... Only the normal charging without communications. These are not an option to solve the problem. Maybe if I would replace the missed parts from the original board if the connector replace won't be suceed.. )
I will write the result!
Anyone, any other solutions? Or anyone known where could I buy the factory version boards?
Regards,
Daniel
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Click to collapse
There are plenty of people with bricked X722's, go to the X722 unbrick thread and message those people, maybe some on will sell you their expensive paperweight for cheap.
If you live near a large city there is bound to be a shop that does repair at the component level. perhaps they could fix your damaged board or as you mentioned transfer the chips from the old board to the 3rd party board that has missing chips. The issue is that some of those chips are likely fried.
tsongming said:
The cables are notoriously bad, one of my x727s was destroyed by a bad cable. Fortunately, Amazon exchanged it for a new phone.
We have 4 Leeco phones in our house. I have replaced all of the USB cables with highly rated cables, that have a replacement guarantee.
Sent from my Pixel XL using XDA Labs
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What sort of cable do you recommend?
Thanks.
Lethalben said:
What sort of cable do you recommend?
Thanks.
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Here is a handy adapter, which limits voltage and block data:
https://www.amazon.com/PortaPow-Data-Blocker-Adaptor-SmartCharge/dp/B00QRRZ2QM
Anker [2-Pack, 6ft] PowerLine+ USB-C to USB-A
https://www.amazon.com/Anker-PowerL...F8&qid=1530649076&sr=8-3&keywords=usb+c+anker
ANKER Safe Quick Charge 3.0
https://www.amazon.com/Charge-Anker...649274&sr=1-3&keywords=anker+3.0+quick+charge
Danika256 said:
Hi
@Kener97
Thanks for the response, I would try it, maybe it would work for me as well, but it is pretty melted..Unfortunatelly I have already disassembled the phone. I did not have another cables, but now I have two good quality fast charger USB C cables, but now I already can't try it! I happy that you can use your phone after the accident. Yeah, you're right the original cable has very bad quality. I had already thrown it into the trash.
So I decided If I have already disassembled the phone than I will try to replace the USB C port in the next week and then I'll se what can I do.
@tsongming
Thanks for the links, but as I wrote, these USB boards unfortunatelly are not the original items just cheap versions with many missed parts! Check the images!!
You can see teir solder points on the boards. So these don't support OTG and fast charging... Only the normal charging without communications. These are not an option to solve the problem. Maybe if I would replace the missed parts from the original board if the connector replace won't be suceed.. )
I will write the result!
Anyone, any other solutions? Or anyone known where could I buy the factory version boards?
Regards,
Daniel
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Hello, could you tell me if you managed to get the board working by changing the connector ? My connector also burned. also I was wondering if my earphones would work on the cheap boards that are sold on aliexpress ?
Melwin1000 said:
Hello, could you tell me if you managed to get the board working by changing the connector ? My connector also burned. also I was wondering if my earphones would work on the cheap boards that are sold on aliexpress ?
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Hi!
No, only will work the slow charging and USB communication with the cheap, useless USB flex board!
But there is a solution, to get a new original x720 USB board with all functionality!
After 3 months and Iots of time what I spend on the net, I found TAOBAO chinese site, and to my surprise some seller selling the original version board there with a good price!
Use the Crome browser with built in translater!
Only one problem, TAOBAO is a chinese "domestic site", and nobody ship to abroad.
But I did not give up! And I found the final solution, that's Yoybuy! (Yoybuy.com)
Yoybuy is a forwrding site!
You can buy everything form chinese sites helped by Yoybuy, for a cheap price!! From Taobao or many chinese site and you can use it English.
Just register at Yoybuy and copy the Taobao item's link to Yoybuy and they will buy the items, what you want! You can pay by paypal as well!
I hope I could help you! My phone is back to life, and it is like a new one!
Regards
Daniel
PS. Definitely buy a new good quality USB C cable for charging ( I recommend You the Oneplus DASH cable) to stay the USB connector intact!
Kener97 said:
Hi, exactly the same happened to me, the USB port of my leeco was burned. I do not know if it would be because of the usb cable c stock that brings (bad quality). But you'd be surprised if I told you that, shortly after the usb port c burned down, I looked more closely at port C and there was melted black plastic on the pins of the connector. Then clean the connector with a fine needle (carefully), getting rid of the plastic, the remains are cleaned with cotton and a little isopropyl alcohol (which leaves no traces when it evaporates). After doing all the above, I was surprised when I plugged in the headphones and it worked, in the end I tried another cable type C first with the PC and it worked (it was recognized by the normal PC), then I took a chance with another charger I had at home (not the Leeco charger) and it worked ... I had no problem loading it. You could try it ..!
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I think you make a good point about the the LeEco charger. Precisely, it is the cable that is the biggest culprit. I recently bought a x720 and had it for a week charging with an old charger and cable of my le 2. One day i couldn't find the le 2 charging cable so I decided to use the one that came with the pro 3. Just seconds after plugging the cable in I smelled burning plastic and could see smoke coming out of the usb port. I removed the cable and could immediately see that it had melted on the pins close to the edge. Funny enough, if i plug this burnt cable on my le 2 it is charging but if i plug it into the pro 3 it gets hot and starts to produce smoke. I have tried with other type c cables and the port is burning them also. Now it looks like I need to replace my usb port. I will have a closer look at it to see if it can be cleaned but I'm not hopeful. I hope i can get original parts for it because i was sold an old phone by an AliExpress seller who claims it's new. I have started a thread on it. Hopefully I can spin it out to ask anyone with information about where to get genuine parts to help restore these old phones.
https://forum.xda-developers.com/le-pro3/help/swindled-aliexpress-seller-sold-t3948260