Develop Bugs

[Q] Galaxy nexus MHL/HDMI

Hello guys,
Lately I have been using the MHL/HDMI cable for gaming on my Galaxy nexus to play Modern combat 3. Since i'v tethered my dual shock controller through bluetooth, Wifi is on for online playing, and the screen is on while playing, always run out of juice!! Even though my phone is plugged to the charger.
so i have been wondering if any of you guys could help me put my screen off while plugged into MHL/HDMI. Or help me under volt. thank you

Are you sure your using the correct charger?
Try a 10watt USB iPad charger.

am using the apple 10W USB Power adapter. input: 100-240v ~0.45A.... 50-60Hz Output: 5.1V 2.1A
the white block one

I think the nexus is limited to 1A. Not sure if the limit is changed when using mhl. Also, heat is a factor. It might be possible to get longer play times if you have air flow all around your nexus to keep it cooler. Meaning elevate it without a cover on. And maybe a fan blowing on it.
Sent from my Nexus in Texas.

When you charge go to phone status in the settings does it say charging Ac or charging usb ? if it says charging usb there's your problem.
Sent from my Galaxy Nexus using Tapatalk

MHL is limited to 500ma per spec.
http://www.mhltech.org/about/FAQs.aspx
Q. 4
Pogo pin charging seems like our only hope.

Came here to ask the same question as no matter what adapter I used it showed charging USB which for gaming isn't enough by a long shot. Good to know i'm not the only one.
Is there a way to get the kernel to ignore the type of connection and draw as much power as is possible? Similar to how many of the tablet kernels were modded to allow charging over USB and not just the adapter that was packaged with the device.

staticx57 said:
Came here to ask the same question as no matter what adapter I used it showed charging USB which for gaming isn't enough by a long shot. Good to know i'm not the only one.
Is there a way to get the kernel to ignore the type of connection and draw as much power as is possible? Similar to how many of the tablet kernels were modded to allow charging over USB and not just the adapter that was packaged with the device.
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Has anyone tried a charge only cable? These are the cables which have a short across the data pins. I know it's a long shot since the AC charger should cross the same data pair.
I hope there is some XDA magic that can be applied to draw more current. I have a feeling it will require a hardware tweak of the MHL adapter and driver level hacking of the silicon image chip.

I have tried a few different AC adapters including the blackberry, HTC, and a random LG charger and they all showed as charging as USB and not AC. I would imagine it is in all MHL adapters and/or the phone.

Tablet burning out chargers?

Is it possible for the Nexus 7 to burn out chargers and cables? I've never known of a device to do this but my daughter's tablet has burned through at least chargers and cables in about the past six months. Each time the charger stops working on her tablet, it also no longer chargers any other Android device. I'm not quite sure what's going on here.

macschwag14 said:
Is it possible for the Nexus 7 to burn out chargers and cables? I've never known of a device to do this but my daughter's tablet has burned through at least chargers and cables in about the past six months. Each time the charger stops working on her tablet, it also no longer chargers any other Android device. I'm not quite sure what's going on here.
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A permanent N7 fault can damage poorly designed chargers but not cables. As the problem is intermittent and both cables and chargers fail, it is most likely that N7 is used while being charged. Constant bending and twisting results in a cable short circuit which also damages the charger.

Might also be a short in the mini USB connector on the tablet.
You might want to try wireless charging and avoid using the port entirely.

ssenemosewa said:
Might also be a short in the mini USB connector on the tablet
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It is actually a micro USB connector - what could be occasionally shorting there? But more importantly, is it possible for a short in the connector to repeatedly burn out USB cables (the OP's question)?
Let's check it out. I experimented on the weakest USB cable I could find - from a wired mouse, which is very thin because normally it needs to carry only a few mA of power supply current. I cut a single wire strand from the red, power, multi-strand cable (#1) and connected it to a regulated 3A power supply (#2). At 2A it was slightly warm, at 3A it was warm (#3). I suppose it would burn out at 5A and let's assume that 2A is the max safe current. As the red wire has 7 strands, then the max safe current is 14A and projected burn out current is 35A.
The 2m long cable has power path resistance of around 1ohm, so the max possible current from a 5V source is only 5A - well below the safe limit. A 1m long cable, shorted at the N7 USB connector could deliver max 10A - still below the safe, really conservative 14A cable limit. And we are talking about a lousy USB cable from a wired mouse - you can double the limits for quality USB power cables.
Can you see the implications? It does not matter how powerful the charger is because the cable's internal resistance prevents it from burning out - EVER (@5V of course).
Can you imagine what 10A current could do to a shorted N7 connector? The heat and smoke would surely be reported by the OP.
Finally, the original N7 charger delivers below 2A and most cheap replacements below 1A anyway.

k23m said:
It is actually a micro USB connector
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True. My bad. Was typing quickly.
k23m said:
what could be occasionally shorting there? But more importantly, is it possible for a short in the connector to repeatedly burn out USB cables (the OP's question)?
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Actually, the OP's question was "Is it possible for the Nexus 7 to burn out chargers and cables?"
Your analysis of the heating of USB cables, while interesting, isn't really applicable here. I'm betting that it's the chargers that are being overloaded and burned out. I'm also betting that the connector on the tablet is damaged and might be damaging the connector of any cable pushed into it.
k23m said:
what could be occasionally shorting there?
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I had this exact problem with a Lenovo tablet. The pins on the connector got bent out of shape and burned up several chargers until I discovered it. I messed up the connectors on a few cables as well.
That's why I specifically searched for and purchased a tablet that offers wireless charging capability. Those Micro USB connectors are quite fragile and easy to break. The less use they get, the better.

I've charged my nexus 7 wirelessly since day one. Wireless chargers can be found for cheap, certainly cheaper than the combined cost of your burned out cables.
In my two years of owning the tablet, I've physically plugged it in maybe three times. Usually if I'm traveling and didn't feel like packing the wireless charger and opted to just use my phone charger instead.

[ALERT] TYPE-C PORT and TWO accessories FRIED

So I was charging my phone like usual. And I was slightly aware that there was a compatibility issue between QC 3.0 and Type-C.
HOWEVER, tonight at about 12amish GMT. I kept smelling a burning smell... Which I thought it was my cat. but then when I decided to charge my phone using my Lumia 950 XL charger. I discovered the port had been burnt, and the cape and phone where burning ****ing hot! I felt the type-c plug from the charge against my top-lip and I got burnt...
I'm writing this a bit panic-y as I want everyone to just know TO BE CAREFUL. I'm not sure what exactly caused this as I have looked after the phone as if its my baby. Always case and a screen protector. I have a feeling this is down to compatibility!?
Anyone with similar issues, suggestions or such?
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https://1drv.ms/i/s!ApgIOc0kRR7Sl4dD-I6Fz_tNorEnRw
https://1drv.ms/i/s!ApgIOc0kRR7Sl4dBqVqPnnW6UgdktA
https://1drv.ms/i/s!ApgIOc0kRR7Sl4dAaR9KAmgBnUMaHw
https://1drv.ms/i/s!ApgIOc0kRR7Sl4c_KkbOCCaR4HbF3g
https://1drv.ms/i/s!ApgIOc0kRR7Sl4c-CX3xqnj2JjtoBA
https://1drv.ms/i/s!ApgIOc0kRR7Sl4c7inelDdbl20y7ug

Intraducinmista said:
So I was charging my phone like usual. And I was slightly aware that there was a compatibility issue between QC 3.0 and Type-C.
HOWEVER, tonight at about 12amish GMT. I kept smelling a burning smell... Which I thought it was my cat. but then when I decided to charge my phone using my Lumia 950 XL charger. I discovered the port had been burnt, and the cape and phone where burning ****ing hot! I felt the type-c plug from the charge against my top-lip and I got burnt...
I'm writing this a bit panic-y as I want everyone to just know TO BE CAREFUL. I'm not sure what exactly caused this as I have looked after the phone as if its my baby. Always case and a screen protector. I have a feeling this is down to compatibility!?
Anyone with similar issues, suggestions or such?
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Click to collapse
The Lumia is c to c right? If so, yeah there were lots of reported issues where people used various c to c cables with a c brick (most were pixel or nexus chargers that I saw) that had the same issues you did. Think it ended up being that the 10 doesn't have the right safe checks in place to stop charging at 100%, and it just keeps trying to push 3 amps even when fully charged (could be wrong about that though)

guyverzero said:
The Lumia is c to c right? If so, yeah there were lots of reported issues where people used various c to c cables with a c brick (most were pixel or nexus chargers that I saw) that had the same issues you did. Think it ended up being that the 10 doesn't have the right safe checks in place to stop charging at 100%, and it just keeps trying to push 3 amps even when fully charged (could be wrong about that though)
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mmm.. the phone was charging from almost nothing... I think I was charging it from about 20% using a zuk z1 cable plugged into my computer that was connected to a usb 3.0 port. the cable is 3.0 standard and the phone is 3.1 if I rememeber

ive just added images into the original post

guyverzero said:
Think it ended up being that the 10 doesn't have the right safe checks in place to stop charging at 100%, and it just keeps trying to push 3 amps even when fully charged (could be wrong about that though)
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You don't Push Amps, you pull em, you Push Voltage.
The phone decides how much amps it wants to draw.
More likely missing cables inside the cable or bad quality Connector.
Was it an original Microsoft Cable from the 950 or bought afterwards?
P.S can't see the pictures. Just my bad Internet?

Haldi4803 said:
You don't Push Amps, you pull em, you Push Voltage.
The phone decides how much amps it wants to draw.
More likely missing cables inside the cable or bad quality Connector.
Was it an original Microsoft Cable from the 950 or bought afterwards?
P.S can't see the pictures. Just my bad Internet?
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I cant see the photos either

_-..zKiLLA..-_ said:
I cant see the photos either
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doesn't appear the image tag correctly grabbed the microsoft drive images so i deleted the image format. Downside is you can't see them inline.. but the upside is you can click them to see em..

Read here...
..and follow the links at the bottom.

UPDATE: ok so, I've taken it back to the place I brought it from and they sent it to the repair centre (carphone warehouse). They've turned round and said tis water damage but I disagree as I do not like to keep my gadgets in places that are potential for issues. Will be taking it up with the shop. failing that, Trading Standards.
CAN SOMEONE HELP ME; does water corrosion look similar to that of corrosion caused by excessive current or connection shorting?

I had a ps4 controller do the same thing. it was cause by the cable was not 100% plugged into the controller port. it was still able to charge a bit but after awhile I noticed a burning smell... same results

Intraducinmista said:
UPDATE: ok so, I've taken it back to the place I brought it from and they sent it to the repair centre (carphone warehouse). They've turned round and said tis water damage but I disagree as I do not like to keep my gadgets in places that are potential for issues. Will be taking it up with the shop. failing that, Trading Standards.
CAN SOMEONE HELP ME; does water corrosion look similar to that of corrosion caused by excessive current or connection shorting?
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I would be looking for blue oxidation if it was water damage.
Sent from my HTC6545LVW using Tapatalk

dottat said:
I would be looking for blue oxidation if it was water damage.
Sent from my HTC6545LVW using Tapatalk
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By any chance green oxidation would indicate electrical corrosion from shorting of the contacts?

QC3.0 cannot exists as TypeC output, also the standard is not supported by USB consortium which developed USB Power Delivery instead.
Benson Leung warned people, that type c to type c charging should be avoided.
Even HTC10 does not follow the official usb specification and uses QC so best any user can do, i using legacy USB type A to type c cable and using charger with USB A output port. Also all cables must have 56k ohm resistor, cheap one come with 11k resistor and could damage power charger or the device. Check Bensons google+, he even linked to Tronsmart chargers which were out of specification and should be avoided.

cavist said:
QC3.0 cannot exists as TypeC output, also the standard is not supported by USB consortium which developed USB Power Delivery instead.
Benson Leung warned people, that type c to type c charging should be avoided.
Even HTC10 does not follow the official usb specification and uses QC so best any user can do, i using legacy USB type A to type c cable and using charger with USB A output port. Also all cables must have 56k ohm resistor, cheap one come with 11k resistor and could damage power charger or the device. Check Bensons google+, he even linked to Tronsmart chargers which were out of specification and should be avoided.
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Yeh, I became aware of this when the QC3.0 was released. Though, my assumption was because I'm connecting between usb type-c to the phones type-c it wouldn't charge off the QC3.0 standard.
Initially, I was using the Nokia type-C charger which came with my Lumia 950XL. It charges at 15 Watts (5V, 3.0A). I had used this the majority of the time and hadn't gone wrong. Sometimes I'd use a portable battery charge which charged at a generic 5V 2A AND a Samsung nexus 10 charger which was a usb female and charged a the same rate.
I would've assumed (also judging from the new releases by QUALCOMM) that QC3.0 phones would either charge of USB standard OR take advantage of QC. I've never used type-c to type-c charging only because I never had the capability. There is a slider in the settings menu to use USB3.1 standard but again, never used it. always done this through a usb3.0 to usb type-c cable.

HTC10 charges normaly from any standard legacy USB port like your old HTC M7 usb wall charger or notebook usb ports. QC3.0 uses data lines in usb cable to provide power and this method is not approved by the USB consortium, thats why you can not also communicate with your phone in QC3.0 mode, because there is no free lines for data left. You can either fast charge, or switch to standard usb mode and transfer files without QC3.0.
USB TypeC standard forbids strictly manouvers over the cable like QC does. For this, the newest Chromebooks and Nexus uses approved USB Power Delivery.
The "problem" was, that Qualcomm is also part of research and development of USB Power Delivery but yet, they in the same time were developing QC3.0. Was it for pure marketing purpose or to fill the gap between USB PD going live, we can not tell.
The only way now to end this confusion is to wait for Qualcomm to switch for USB PD as a successor of QC3.0 because there is really no point of two competing charging standards which one is spec certified and the other is not.

cavist said:
HTC10 charges normaly from any standard legacy USB port like your old HTC M7 usb wall charger or notebook usb ports. QC3.0 uses data lines in usb cable to provide power and this method is not approved by the USB consortium, thats why you can not also communicate with your phone in QC3.0 mode, because there is no free lines for data left. You can either fast charge, or switch to standard usb mode and transfer files without QC3.0.
USB TypeC standard forbids strictly manouvers over the cable like QC does. For this, the newest Chromebooks and Nexus uses approved USB Power Delivery.
The "problem" was, that Qualcomm is also part of research and development of USB Power Delivery but yet, they in the same time were developing QC3.0. Was it for pure marketing purpose or to fill the gap between USB PD going live, we can not tell.
The only way now to end this confusion is to wait for Qualcomm to switch for USB PD as a successor of QC3.0 because there is really no point of two competing charging standards which one is spec certified and the other is not.
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so would this mean I will need to set my phone to file transfer mode if I want to charge from USB?
Also, for reference, is there a way to disable quick charge 3.0 (which I assume may be present in the build.prop file OR am I thinking more noob like)

Intraducinmista said:
so would this mean I will need to set my phone to file transfer mode if I want to charge from USB?
Also, for reference, is there a way to disable quick charge 3.0 (which I assume may be present in the build.prop file OR am I thinking more noob like)
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No, you must understand how usb and QC3 works. I will try to explain it as simply as I can.
Legacy USB have 4 cables inside, two for data transfer, one for curent and one for ground.
If you plug your phone to the usb in notebook, you can charge and transfer data in the same time.
What QC3.0 does, it is using the data paths for providing additional power, so when you plug it to your QC3 charger, it uses all the data routes/cables in USB only for additional and faster charging, so the data connection is blocked in this mode.

Ok, just came back from Carphone Warehouse. It looks as if the phone has corroded more during the time I've given it to them and the time its taken for it too come back.
The colour of the corrosion was of a greenish hue.

cavist said:
No, you must understand how usb and QC3 works. I will try to explain it as simply as I can.
Legacy USB have 4 cables inside, two for data transfer, one for curent and one for ground.
If you plug your phone to the usb in notebook, you can charge and transfer data in the same time.
What QC3.0 does, it is using the data paths for providing additional power, so when you plug it to your QC3 charger, it uses all the data routes/cables in USB only for additional and faster charging, so the data connection is blocked in this mode.
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I'm awar eof this, but my question is if it can be disabled on the phone or not.

Never heard of disabling QC. I do not think that HTC will provide any tool to disable built in chipset feature.

Does anyone here use thunderbolt?

I plugged in my phone via my thunderbolt slot with USB Type-C and it says "Charging slowly". Is there a new type of USB C I need? (I got this type C cable in 2015). However, back when I had my nexus 5x, it would say "Fast charging". So I'm a bit confused here...
Is this normal?

The Nexus and the 5T have different power delivery specs. I would consider this normal.

xocomaox said:
The Nexus and the 5T have different power delivery specs. I would consider this normal.
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Alright thanks!
I had gone ahead and plugged in the cable that came with the phone in my pc, now it says charging (not slowly) anymore. However, I want fast charging. I'd have to assume I need to buy USB C - USB C with a specific speed?
I'll look into it. Thanks for your help!

No, that means that the oneplus 5t won't fast charge from anything other than its charger due to different charging protocols. Changing the cable won't make this better.

Dariusdd said:
No, that means that the oneplus 5t won't fast charge from anything other than its charger due to different charging protocols. Changing the cable won't make this better.
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Thing is, I am using the cable that was provided with a usb 3.1 slot. Even when placing it in a 3.0 slot, it doesn't say "Fast charging" but just "Charging". Unless that's now how it works in the one plus 5t. I come from the nexus phones so I'm just assuming everything as I am new to this specific brand.
The phone itself is lovely! It's a really good, solid phone and I will never go back to the nexus phones ever again. I cannot wait for custom roms to come out with Oreo!
EDIT: Aah, problem solved. Turns out you need to use the Dash power adapter. Now it's charging extremely fast! Thank you so much for you help!

The phone's usb C port is USB 2.0 spec compliant, so the USB 3 higher power delivery sadly won't work. It's good that you like the phone.

What to do if my phone does not charge using airline USB?

In my last two international flights (United and Norwegian), I noticed that my OP3 doesn't charge when plugged into in flight entertainment system USB. When plugged in the cable, I also tried Ampere to see charging levels but it indicates the phone is not charging.
During flights, after noticing the issue, I tried the following when plugging the cable, with no luck:
turning the phone completely off/shutdown
tried using two different cables (one standard and the other DASH), both failed but otherwise work fine if used in any other USB port (e.g., workstation).
tried different USB ports (where others were charging their devices).
I also asked others to try charge their phones on the same port, two different phones charged fine (one was iPhone and other Samsung).
I am running official OOS 5.0.1 with blu_spark kernel. The phone used to charge fine in flight few months ago, so not sure if it's a software issue...
Any thoughts or solutions?

I'm sure the USB port doesn't supply enough amperage to charge the phone. It's probably just like my truck's radio USB port, it will not charge my 3T.

mmurphmsu said:
I'm sure the USB port doesn't supply enough amperage to charge the phone. It's probably just like my truck's radio USB port, it will not charge my 3T.
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if that is indeed the case, then, on a technical note, how much amperage OP3 needs?
(I am asking because, as I mentioned, on the same port iPhone 7 and Galaxy S8 were charging...)

200 said:
if that is indeed the case, then, on a technical note, how much amperage OP3 needs?
(I am asking because, as I mentioned, on the same port iPhone 7 and Galaxy S8 were charging...)
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I have no idea. Maybe someone else would know that or you could ask OnePlus support.