910C USB OTG not functioning - Galaxy Note 4 Q&A, Help & Troubleshooting

My first upgrade to MM my JDS ODAC (USB audio) worked for a while then a month later its no longer being recognised.
Whenever I plug it in, phone will wake up but does nothing. Other stuff like keyboards, pendrives and HDD still works.
The ODAC is fine, I tried it on my Surface Pro and desktop, all's well.
After this recent update (includes June security update) which was supposed to "improve performance and stuff" broke the OTG entirely, now nothing works. Did wipe the cache and a full system reset but it still isn't working.
Now when I plug stuff in, phone doesn't even bother to wake up.

Does your device still charge properly? If it does then there is a chance that your USB OTG cable is damaged.

Yes it charges fine, I'll get another cable to try but sadly won't be back home till a month later.

I have the same problem. my note 4 (N910C) charges fine, but will not transfer any data. I bought 2 extra usb boards and it still doesn't work.. i wonder if it's because of the root i used.. I'm planning to try to re-root it and see if it'll fix things.

Related

[Q] USB Port Shorted out?

nHey guys I have a bit of an issue. Over the last few days I noticed my vibrant was starting to think there was a USB cable plugged in constantly. In the notification bar, it had the 2 boxes for enabling the SD card reader, and disabling usb debugging. After a soft or hard reset, it would persist. I was on Nero v5, but just flashed the most recent Bionix Rom to see if that fixed it. Still it did the same. Tonight, I plugged in the usb cable I always use for charging, and the phone ended up constantly thinking it was charging. I pulled the battery, and now am unable to boot the phone, because it thinks it is "charging". Any help would be great.
Edit: Update: I am able to boot the phone correctly if I plug it in while off, let the phone begin charging, and then hivt the power key.
You might have some debris in the usb port, and usb debugging is on by default with most TW roms. See if you cant blow it out with some canned air and you cant turn off usb debugging in the settings>applications>developement
I've had this problem intermittently since purchasing my soft bricked ebay special. It seems to go away after a few days from the time the rom was loaded for me though.
Sent from my SGH-T959 using XDA App
I have usb problems, too. It started like your issues, then progressed into pc-phone troubles. Now, none of my computers can "talk" to my phone. No odin, no removable storage, no tethering, no adb. The phone works fine, otherwise. If the phone is off, plugging it in to charge will turn it on. I've heard that clockwork has a bug that is causing these troubles.
I can flash roms, kernels, modems, but can't be adventurous without odin.
My problem wasn't as severe, but I called t-mobile nonetheless and they said it was a known issue and immediately sent a replacement.
Sent from my SGH-T959
Well today I took the phone apart down to the motherboard, and went through it with a can of compressed air. Didnt help at all sadly.
For the time being, I just disabled USB debugging because I hate having the 2 usb related icons. I might give tmo a ring, but even though I bought the phone NIB, it was off ebay, so I doubt I will be able to get a replacement. If I am correct, rubbing alcohol will NOT mess up any electrical contacts right? I thought about getting a small dropper or something and trying to "flush out" the port. While I was in there, the soldering joints looked fine, and I saw no corrosion or anything similar.
Don't discount the possibility of a bad cable. My original one drains my phone instead of charging it. Luckily I had already ordered a couple of more cables (unfortunately shorter ones) and they work fine.

Charging issues, Micro doesn't work but 3.0 does??

So my Note 3 suddenly doesn't want to charge via any of my reliable micro usb cables... My usb 3.0 cables charges it perfectly fine. Yes I'm rooted and have been going great, just randomly a couple days ago my phone was just dead even though plugged in via micro usb.
Any thoughts?
sounds like a port issue on the phone. its not a year old yet so it if it is you should be able to get another one.
if it were me i would need to for sure it wasnt somehow software related and would try a factory reset and see what happens since it can do wonders sometimes.
Question - have you tried plugging it in while it is turned off to see if it charges with the USB 2 cable?

Can't charge with OEM Adaptor, Only with USB to PC

I'm having a charging issue and am lost on what else to try to fix this. I can't charge using my OEM adaptor and cable, only when connected to PC with USB. The USB cable that works with my PC is the same one I use with the adaptor.
The USB port is on my phone is good, charges fine when connected to PC (although much slower because of different mVS). Read a suggestion to make sure the tab part of the USB connector isn't bent, it doesn't look damaged at all and like I said, has zero problems connecting to my laptop.
Have tried almost everything except going back to stock, and nothing fixes it. I've turned debugging mode off and back on, restored a backup from before the issue began, completely wiped and reinstalled 2 different build of ROMs with and without apps, fixed permissions, tried different kernels, different USB cables...
The adaptor is in good condition. But when plugged in while my phone is on, it doesn't recognize that's it's connected. Previously it would give a false charging reading. If my device is off, sometimes I would get the grey bar battery, but now it's just vibrating every few seconds. Idk what to do...
I have an i337m and am currently running slimkat weekly 6.2 but tried official 6.0 and restored a weekly 5.9 from before the issue began
I did format /data and /data/media (internal sdcard) I think right before the issue began in order to remove some old folded that would appear during cwm installations of zips from internal storage (e.g., hyperdrive for ex, which I haven't had installed since December) but that shouldn't screw up charging at all
Dude, you're trying way to hard. You're charger is messed up
Sent from my Nexus 5 using XDA Free mobile app
I hope that's the case lol it worked for a bit last night until I unplugged it, then when I plugged it back in nothing happened... seems to only work if power cycled after being connected to my PC

Problem recognizing charging, headset, and PC connection

Hello boys! I have a very serious problem with my LE PRO 3. Since yesterday, the following is happening BUG: When I connect the charger, it does not load immediately. It only loads if I reboot the device. And if I take it out and put it back, it stops loading again. This also happens when I connect to the PC. The device only recognizes if I leave the cable connected and restart. With the headset the same thing. It only recognizes if I leave it connected and restart the device. I'm on the Cydrass Google edition ROM, and my device is the x720 version. I have already switched to other ROMs (LineageOs, Ressuection Remix, and even the Chinese STOCK ROM 26s, and the problem still persists!) Apparently it's a serious problem recognizing my USB port I do not know what else to do! Please, help me!
even first buy , do you have problem ?
To Vitor_147
Remember, if you change the stock original LeEco rom you cannot say "have a problem with my LePro3", it's no longer the original combo "LePro3" (hardware + software) so expect (and accept) anything (better or worse!) and report the defects to the rom developer.
Now some helping things!
Apart to clean the phone usb c port and to try a new usb cable, you can:
With the usb cable connected, switch the usb debug off (or on) (developer options) then check if your computer detect your phone.
Even if your computer doesn't detect the phone or your phone seems not charging battery, if the usb cable (and charger) is good in 99% of the cases it charges the battery even if not at full charge rate (expect a minimum 4 hours charge time).
Before to give up, the last try is to bring your phone back to factory conditions with everything (but everything!) under the exact conditions of how it came out of the factory, then you can start over there and have an idea of whether the phone has a hardware defect or if it's just a matter of software.
I hope you solve the problem, if you find the right solution please report it here, so other users can learn how to solve this problem! Cheers!
orsonbear said:
To Vitor_147
Remember, if you change the stock original LeEco rom you cannot say "have a problem with my LePro3", it's no longer the original combo "LePro3" (hardware + software) so expect (and accept) anything (better or worse!) and report the defects to the rom developer.
Now some helping things!
Apart to clean the phone usb c port and to try a new usb cable, you can:
With the usb cable connected, switch the usb debug off (or on) (developer options) then check if your computer detect your phone.
Even if your computer doesn't detect the phone or your phone seems not charging battery, if the usb cable (and charger) is good in 99% of the cases it charges the battery even if not at full charge rate (expect a minimum 4 hours charge time).
Before to give up, the last try is to bring your phone back to factory conditions with everything (but everything!) under the exact conditions of how it came out of the factory, then you can start over there and have an idea of whether the phone has a hardware defect or if it's just a matter of software.
I hope you solve the problem, if you find the right solution please report it here, so other users can learn how to solve this problem! Cheers!
Click to expand...
Click to collapse
I already wrote this up in Omni thread, so I'll keep it short. I've also been experiencing this same issue for a while now, it first happened on stock rom, reboot solves it. Darko tried a fix in his eas kernel, seems to fix it (so maybe somehow kernel related). I believe it might be somehow related to the usb-c controller, cause I found cases online of similar issues with pixel phones (i believe the controller manufacturer is the same as in our phones). I actually know the exact moment when my problems first began, after I used my OTG adapter to connect a usb mouse. Few hours after that, the phone wouldnt charge.
{Disclaimer - this part is purely my theory}
I think it maybe somehow related to a safety "switch/fuse" of sorts, or something to do with static discharge or something similar, and here's why. I did a loot of trial and error since the first time it happened to me cause it scared the sh*t outta me, thinkin my phone is broken. I am vigilant about careful handling of usb ports and such, (ocd-ish really) so theres no way I physically damaged it, its not loose one bit, cleaned it out, tried wiggling the cable around anyway, has no effect, so I excluded the possibility of a faulty port/soldering. A few occurences to note
No1 - if I plug my phone in the charger first, and then plug the charger in the outlet, it breaks the port, I have to reboot to fix it. But plug the charger in the outlet first, then the cable to the phone - no problem. (Static discharge of sorts?)
No2 - since it started happening, the only way my usb-c OTG adapter works is if i first plug the adapter in the phone, and then the desired usb device in the adapter. If i try to plug the adapter in the phone w/say a usb stick already connected to it - no go, doesnt work.
Oh... I'm sorry for what happens to your phone! It's true the safest way to charge a phone avoiding current surge/spikes/shocks is to plug first the charger to AC outlet, then the usb c plug to the phone, then the usb plug to the charger. If possible, never plug/unplug the charger to/from the AC outlet if the phone is connected to the charger.
When the phone is full charged, first unplug the cable, not important which side first, then unplug the charger. If the phone is still charging, better unplug first the cable from the charger side to avoid micro spikes on the usb c port.
If you cannot obtain a normal behavior of the usb c port neither with reflashing the phone with the "qfil" system, perhaps a logic port of the usb c port is burned or simply in undetermined state, in the last case a total battery discharge may reset the logic port state and the phone can works fine once fully recharged. I'm sorry I can't help you better at this time! Cheers!
Sent from my LEX720 using XDA Labs
@orsonbear, thats my train of thought aswell, micro discharges occuring while plugging/unplugging causing the controller to freak out, or potentially damage the tiny connections (micro usb only had 4 wires vs 24! in usb-c). But I believe the problem lies somewhere on the software/firmware side, mainly because a reboot solves any issue I have. And also I just remembered, the first time it happened to me was a couple of days after I updated my firmware while updating to 19s, or 20s, cant recall precisely. Anywho, for me it's a minor nuissance, not like the OP who can only connect his phone once before rebooting (I can go for weeks before it occurs).
orsonbear said:
Oh... I'm sorry for what happens to your phone! It's true the safest way to charge a phone avoiding current surge/spikes/shocks is to plug first the charger to AC outlet, then the usb c plug to the phone, then the usb plug to the charger. If possible, never plug/unplug the charger to/from the AC outlet if the phone is connected to the charger.
When the phone is full charged, first unplug the cable, not important which side first, then unplug the charger. If the phone is still charging, better unplug first the cable from the charger side to avoid micro spikes on the usb c port.
If you cannot obtain a normal behavior of the usb c port neither with reflashing the phone with the "qfil" system, perhaps a logic port of the usb c port is burned or simply in indeterminated state, in the last case a total battery discharge may reset the logic port state and the phone can works fine once fully recharged. I'm sorry I can't help you better at this time! Cheers!
Sent from my LEX720 using XDA Labs
Click to expand...
Click to collapse
Yes,
I thought about letting the phone down completely, and see if that does not happen anymore!
Same problem here
Days ago it start happen, exactly how you say, i never change the stock software and it start happen randomly, I have to reboot to recognize anything that I plug into the USB c port, I try factory reset and change from 26s to 23s and it keeps happening so maybe I'm pretty ****ed, someone help me, in my country no one will fix the port u.u (sorry for my English).
Hellao! I'm having a very similar issue, charging works fine and the pc detects the phone but OTG and the audio on my headset is not working. Did someone of you find a solution to this problem?
1. x720, x722 or x727?
2. Where did you buy the phones? (Store names)
3. What kind of USB-C cable were you using? The one that came in the box? Have you used other USB-C cables and adapters to see if it works?
This could be hardware failure due to a lack of QCing from LeEco (just your average hardware issue) or a USB-C cable issue. It's ver. 1.0 on all LeEco Pro 3 models (right)? So I can't say it's the cable for sure. Has anyone attempted to take the phone apart to replace the port? do they even sell the port replacement?
Similar problem for me. About a month ago my headset stop working and the phone did not recognize it at all, tried with the adaptor to 3,5 mm jack and did not work either. Charging worked though.
Found a replacement chip with usb c port and ordered. Yesterday i replaced the charging port, but still the headset do not work at all, and connection to PC does not work ether. Charging still works as usual.
I ordered the phone from grossoshop 7 month ago with their rom. Tried this evening to upgrade the rom from 5.8.018 to 5.9.020, still grossoshop but no difference... It should not be a hardware problem as i replaced the type c port.
Should i try to flash another rom to see if there's any difference?
Any other suggestions?
Thankful for any ideas
Linkan78 said:
Similar problem for me. About a month ago my headset stop working and the phone did not recognize it at all, tried with the adaptor to 3,5 mm jack and did not work either. Charging worked though.
Found a replacement chip with usb c port and ordered. Yesterday i replaced the charging port, but still the headset do not work at all, and connection to PC does not work ether. Charging still works as usual.
I ordered the phone from grossoshop 7 month ago with their rom. Tried this evening to upgrade the rom from 5.8.018 to 5.9.020, still grossoshop but no difference... It should not be a hardware problem as i replaced the type c port.
Should i try to flash another rom to see if there's any difference?
Any other suggestions?
Thankful for any ideas
Click to expand...
Click to collapse
Have you tried switching cables? Could you have broken a contact or something while swapping the port out? Have you tried putting the old port back in to see if the computer recognizes the phone with it? Unfortunately you're gonna have to try everything, even if opening it back up again is tough. LeEco phones aren't exactly known for their build quality. Are you x720? Well, flash whatever ROMs you can, I guess. Might as well try everything.
sk8223 said:
Have you tried switching cables? Could you have broken a contact or something while swapping the port out? Have you tried putting the old port back in to see if the computer recognizes the phone with it? Unfortunately you're gonna have to try everything, even if opening it back up again is tough. LeEco phones aren't exactly known for their build quality. Are you x720? Well, flash whatever ROMs you can, I guess. Might as well try everything.
Click to expand...
Click to collapse
Yes, I have tried to switch the cables so no problem with them. Have not done a swap back again as the problem seem to be similar as before, so maybe a change to a different rom will be the next step for me. If change of rom does not work, maybe then I'll try to swap port again.
And yes, It's a X720
Thanks for fast reply.
Linkan78 said:
Yes, I have tried to switch the cables so no problem with them. Have not done a swap back again as the problem seem to be similar as before, so maybe a change to a different rom will be the next step for me. If change of rom does not work, maybe then I'll try to swap port again.
And yes, It's a X720
Thanks for fast reply.
Click to expand...
Click to collapse
Maybe it's not plugged in or attached correctly so the phone doesn't detect it. Sounds like a hardware issue to me, in all honesty. I once took apart my iPhone 5 to replace the non-functional home button and it wouldn't work no matter what I tried. I had to remove the battery, reseat it, and then attach the home button again. It finally worked after a reboot.
just report in on this thread, I as well recently purchased an x727 experienced the similar issue. Basically as described above no matter what roms i test is always have some sort of camera errors when charging.
sometimes charging doesn't work or camera doesn't work I have to reboot to get it to work. extremely annoying. I think it is hardware related.
Anybody else have a solution?
blanktape said:
just report in on this thread, I as well recently purchased an x727 experienced the similar issue. Basically as described above no matter what roms i test is always have some sort of camera errors when charging.
sometimes charging doesn't work or camera doesn't work I have to reboot to get it to work. extremely annoying. I think it is hardware related.
Anybody else have a solution?
Click to expand...
Click to collapse
i got charging problem dude after second day of use just got it last night x727.ffs.
i replace the usb board and the problem persist, i don't know what to do anymore, if someone has passed this problem please speak I am about to smash this damn bugged phone
Anthp said:
i replace the usb board and the problem persist, i don't know what to do anymore, if someone has passed this problem please speak I am about to smash this damn bugged phone
Click to expand...
Click to collapse
This my advice to anybody considering buying this phone don't why you will get zero support from letv.
I got luckey I have zero problems with phone .
I recommend spending more money and getting a supported phone by the maker.
If you do buy one buy it from Amazon where get a warranty on it.
Sent from my LEX727 using xda premium
Somebody fixed thuis allready as my le2 x626 only detects charging by USB when in fact its connected to the AC adapter.
And extremly slow charging from 9 to 100 % more then รณ hours.
Also the phone`s microphone is nog working at all!! And the headphone is nog working!
please help

USB devices

Hello,
I have had a good time using a usb c stick with exFAT to transfer files to and forth from my s8+. In the holidays I had water over the device and after the usb liquid issue. After some days it went away but now no stick , be it my usb c one or others with the OTG connector , is connecting.
Problem is that through cable phone connects to the PC ( although slower than usual ). Also charging first detects a fast charge through original charger and in 2 seconds drops to normal charging. For a while I have reset the device with the stick connected and it got read but after unplugging direct or unmount would
not reappear at a second plug.
Any ideas , this is driving me crazy ( even did a full reset to no avail ).
I hope that somebody can figure this out and it is not a hardware fault. Is there any way of downgrading to oreo april or earlier ?

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