Develop Bugs

Which Portable Charger?

Just got back from glastonbury at the weekend with a dead phone and though investing in a portable charger may be a good idea.
Does anyone have any positive experiance with a charger that they would recommmend?
The veho pebble seems quite good (5000mah) but costs around £35, i dont mind paying this but would rather hear some positive reviews first. Sadly all the reviews i can find seem to be written by the manufacturer :S

Any but...
I have found that any will work, but usually you get what you pay for...

ordered a zaggsparq, seems to get good reviews
has a 6000mah capacity and 2 USB ports to charge devices.
Ill leave some feedback after using it a few times

battery charger
Battery chargers that you know has support.

kleinnj said:
I have found that any will work, but usually you get what you pay for...
Click to expand...
Click to collapse
That didn't work for me. I have a very cheap charger (similar to the one that came with my Milestone, you just plug it in and connect the USB-cable to it and your phone) that does *not* work for the phone (it does for my iPod, though).
The "funny" thing is: using it to charge my phone (or at least try) will switch the phone's "charging" light on but no power every reaches it.
Gave me a hard time thinking my phone (or at least the battery) was broken until I found out ...

rumpleforeskin said:
ordered a zaggsparq, seems to get good reviews
has a 6000mah capacity and 2 USB ports to charge devices.
Ill leave some feedback after using it a few times
Click to expand...
Click to collapse
I'm interested in the ZaggSparq too, let us know how it works for you.

wow...
could you imagine being stuck behind this guy at a drive-thru?

Which Portable Charger
Believe you need care that costs need are quality problems, prevented you come in to look at:
__________________
Digital Camera Battery, Charger，DC Power Jack
Laptop cpu cooling fan

Do want to know how well ZaggSparq works for you too..

Epic 4g Touch inductive charging

Well ... I was scared at first to turn it on but all went well, so I figured I would share.
If you do this yourself you have to be very carefull, the components are a lot more cramped than most.
http://www.facebook.com/media/set/?set=a.10100580041214718.2699333.16714515&type=1&l=2682abf95f
Also a good view if you want to see internals ... not sure if this has been posted yet but I am too lazy to look =0)
I used the palm touchstone and the cover for a palm pre.
Edit :: Pictures were too large, I just linked to a public album, enjoy

Very sweet. I love these kinds of mods.

Very nice. Seems pretty straight forward. I've been wanting to do that for a while but I like my BB warranty...

ManiacMagic said:
Well ... I was scared at first to turn it on but all went well, so I figured I would share.
If you do this yourself you have to be very carefull, the components are a lot more cramped than most.
http://www.facebook.com/media/set/?set=a.10100580041214718.2699333.16714515&type=1&l=2682abf95f
Also a good view if you want to see internals ... not sure if this has been posted yet but I am too lazy to look =0)
I used the palm touchstone and the cover for a palm pre.
Edit :: Pictures were too large, I just linked to a public album, enjoy
Click to expand...
Click to collapse
That is crazy! I ordered the palm pre inductive charging on amazon for $10 dollars 2 days ago, to do the exact same thing.

Good luck! The glass is a bit touch to separate from the outside ... easiest way was to find a place at the glass edge to slip your nail into and patiently work your way around pulling and pushing ... and then make sure you have a nice sharp tip for your soldering iron because it is a VERY tight squeeze ... not just the pins but on the other side of the pin there is also an IC that is close.
It works great ... my only sad thing was that you have to use an AC plug with the touchstone it wont work via USB ... im curious if it would work with those charging mats though. You also should use the 30 gauge wire because it is even tight with that! Let me know if you need anything

What about using flat wiring? It seems like a better idea and it might fit better on that compartment. Of course, there is the issue with cost but it would look nicer.
EDIT: It might be a bad idea if it requires soldering since the cable itself could be destroyed by the heat when soldered to the terminal. From what I see most flat wiring is used in a connector rather than soldered directly to the board.

dont see why not, this was a quick trip to radio shack type of thing =0P
The touchstone wont work off of my laptop USB ... you have to use the ac adapter, but it works perfect in my truck hooked up to my zune FM modulator's usb port ... I'm growing more and more fond of it ... its nice to pick upt he phone for a call and not have to deal with wires ... also the charging stone set in my center console props up the phone very nice for viewing incoming call information or whatever you are using.
The only downfall for me is that when searching about the touch stone it doesn't appear to work with the mA output of a regular USB port ... but it isnt too big of a deal as it is on my desk.

Awesome man, I was thinking about doing this as well. Those pics should save me a bit of time searching for pin outs
Sent from my SPH-D710 using XDA App

Not sure that I'll try this but very cool. Thanks for the pics! Glad people out there are still trying new things.

I have a power matt for my Evo 4g. I used it for about a week then put itnon a shelf to collect dust. It charged my at such a slow rate that it took nearly 6hours for a full charge. With a regular cord it only took 2 hours.. I wonder if they reason power matt didnt make one for this phone is because they charge phones so slowly? I see it as a "cute" thing for a phone but not that functional or worth the $ it costs. HOWEVER! if it charged at the same rate uo 800mAh or so like a wal charger it would be pretty cool. This mod does look bad ass! Do you guys know what the charge rate is? Sweet mod amd keep up the good work guys!
Sent From My Epic Touch 3g

ManiacMagic said:
dont see why not, this was a quick trip to radio shack type of thihttp://media.xda-developers.com/images/editor/menupop.gifng =0P
The touchstone wont work off of my laptop USB ... you have to use the ac adapter, but it works perfect in my truck hooked up to my zune FM modulator's usb port ... I'm growing more and more fond of it ... its nice to pick upt he phone for a call and not have to deal with wires ... also the charging stone set in my center console props up the phone very nice for viewing incoming call information or whatever you are using.
The only downfall for me is that when searching about the touch stone it doesn't appear to work with the mA output of a regular USB port ... but it isnt too big of a deal as it is on my desk.
Click to expand...
Click to collapse
I had a Pre and several touchstones before I had this phone. The touchstone definitely needs 1000 mA (1A) of current to work. USB ports on your computer, and also most chargers, will only output 500 mA. Gotta have that solid juice, mon.

zx3junglist said:
I had a Pre and several touchstones before I had this phone. The touchstone definitely needs 1000 mA (1A) of current to work. USB ports on your computer, and also most chargers, will only output 500 mA. Gotta have that solid juice, mon.
Click to expand...
Click to collapse
What about combining two USB ports? I have seen some mini USB adapters that carry 2 USB connectors precisely for this reason.

Mr. ManiacMagic, you sir get the big balls award for the week.
Nice work!

fenixjn said:
What about combining two USB ports? I have seen some mini USB adapters that carry 2 USB connectors precisely for this reason.
Click to expand...
Click to collapse
ill have to try that out if i ever see one.

rick1908 said:
Mr. ManiacMagic, you sir get the big balls award for the week.
Nice work!
Click to expand...
Click to collapse
lol thanks, thats only cause it worked though ... if i would have broke my phone then id just be a failure!

could we use the battery terms to soldier too ?

jdogg10791 said:
could we use the battery terms to soldier too ?
Click to expand...
Click to collapse
I wouldnt think so. The input to where I soldered to is the same thing as plugging in a USB cable, I think it goes through some conversions b4 making its way all the way to the bat terminal. I guess you would have to check the voltages and current with a multimeter, but I would think they are different. If you can I wasted a lot of time lol.

this actually has me curious i might try it on an old battery/phone ... bc if you can then you would just be able to modify your battery pretty much.

jdogg10791 said:
could we use the battery terms to soldier too ?
Click to expand...
Click to collapse
I don't think this is a good idea since the battery would be charging all the time (no charging limitation/temperature monitoring) and it could lead to overheating the battery/killing it/exploding.

Let us know what u find be I buy the kit
Sent from my SPH-D710 using XDA App

Mophie Powerstation 4000mah

Recently I picked up a Mophie Powerstation in Red for HTC ONE due to being away on work business with no access to an outlet. Just today I had a screen saying to unplug my external battery source due to being incompatible and may cause damage. Is it a cell problem or a Mophie problem?
Sent from my HTC One using xda app-developers app

misterRG said:
Recently I picked up a Mophie Powerstation in Red for HTC ONE due to being away on work business with no access to an outlet. Just today I had a screen saying to unplug my external battery source due to being incompatible and may cause damage. Is it a cell problem or a Mophie problem?
Sent from my HTC One using xda app-developers app
Click to expand...
Click to collapse
I get the same thing when I use a T-Mobile branded universal charger. It says Incompatible power source, please use charger that came with the phone. I think it still works, just that it won't charge as fast as the one that comes with the phone.

misterRG said:
Recently I picked up a Mophie Powerstation in Red for HTC ONE due to being away on work business with no access to an outlet. Just today I had a screen saying to unplug my external battery source due to being incompatible and may cause damage. Is it a cell problem or a Mophie problem?
Sent from my HTC One using xda app-developers app
Click to expand...
Click to collapse
doing a quick google search, it seems the HTC ONE need to have a 2.1amp charger... the Mophie Powerstation, according to the website, goes "up to" 2.1amps output. If for any reason the Mophie is having problem keeping a stable 2.1amps going, that is probably the issue and the reason for the error. If you have the tools, or know an electrician, you should have them test the output for you to see how stable it is and if it is really putting out 2.1amps
P.S. IIRC, too low of an output can be just as bad as too much...

I picked up the Anker Astro Slim 2, very thing and built in cable to, 4600mAh. Even take it with me when i go clubbing, fits in my back pocket like a pack of gum. size of like another phone. Also charges my phone relatively quick. If you live in the usa i think its only 30$ on amazon

reNeglect said:
I picked up the Anker Astro Slim 2, very thing and built in cable to, 4600mAh. Even take it with me when i go clubbing, fits in my back pocket like a pack of gum. size of like another phone. Also charges my phone relatively quick. If you live in the usa i think its only 30$ on amazon
Click to expand...
Click to collapse
I use the same thing, works great with my HTC One. No warnings or anything, although the charger is only 1A output.
I can hold both the battery pack and the phone in my hand just fine too.
To be clear, its like a pack of gum in those long slim pill-like packages. Not the old school stick style gum haha.

Nippero said:
I use the same thing, works great with my HTC One. No warnings or anything, although the charger is only 1A output.
I can hold both the battery pack and the phone in my hand just fine too.
To be clear, its like a pack of gum in those long slim pill-like packages. Not the old school stick style gum haha.
Click to expand...
Click to collapse
Probably one of the best investments I've made Haha, the portability and functionality of it its perfect!

tnEVo said:
doing a quick google search, it seems the HTC ONE need to have a 2.1amp charger... the Mophie Powerstation, according to the website, goes "up to" 2.1amps output. If for any reason the Mophie is having problem keeping a stable 2.1amps going, that is probably the issue and the reason for the error. If you have the tools, or know an electrician, you should have them test the output for you to see how stable it is and if it is really putting out 2.1amps
P.S. IIRC, too low of an output can be just as bad as too much...
Click to expand...
Click to collapse
Your information is wrong, the standard HTC charger outputs 1amp @ 5V.

sluflyer06 said:
Your information is wrong, the standard HTC charger outputs 1amp @ 5V.
Click to expand...
Click to collapse
See what doing a "Quick" google search will get you.... called out!
After doing a slightly longer google search, on the Mophie Website, the ONE doesn't show up on their compatibility chart.
http://www.mophie.com/v/compatibility/compatibility-ps-111212.html
And sluflyer is correct. 5V 1A Charger, tried to find the full output specs for the juice pack, but didn't come up with them. Either way though, my guess is that there is a difference in the output Volts/Amps from the Mophie than what the HTC ONE is rated for...

I used to get such warnings from my iPod Touch all the time (it was stuck with a sheet of PuGoo adhesive to the wall above my bed, so the only way I could get a cable up there was using a low-voltage USB hub). Never had any battery problems there, although as others mentioned you're liable to face increased charging times and the phone may not register as charging. It's usually suitable for trickle charging while the phone is powered down, though (and you may get a little juice if your phone is in low-power operation).

Wireless Charging - is it worth it?

Hi folks,
I've been looking into wireless charging because, I thought, I could set up my phone to charge wireless; that is, across the room, for example. However, upon closer inspection, it looks like I'd be relegated to setting the device on a "base" in order for it to charge. Now, perhaps I was naive (or dumb) in thinking that I could chat away on the phone or otherwise keep it at my desk while some special hardware emits energy through the air to charge my device(s), but I can't for the life of me figure out what the big deal is about putting my phone on a base—that's connected to the wall(!)—to charge my phone in a manner that's less efficient than hooking it up to our 3.0 cable (which, I might add, charges my phone from the red to full in about a half hour). After all, to even take advantage of this charging method we have to buy a special battery, equipment, and even a new case that's compatible with the charger. I just don't get the value...
So, I defer to the community to enlighten me--what do you think of the setup and what benefits do you see form your investment? Also, do you notice a difference in battery performance compared to the stock battery?
Thanks,
R

Wireless charging is not worth it. IMHO.

the best i seen wireless charging is 0.8-1.0 amps which is nowhere near the 2 amps that is more or less required to charge at a fast rate in a decent amount of time from 0 to full.

Yes, it is not as fast as plugging it in but it is great for the purpose of convenience. Just drop it on the charger when you are not looking at your phone... just one downside: the charging back makes the phone thicker and you cannot use most of the cases. If you dont mind a naked phone, go for it.

onurd said:
Yes, it is not as fast as plugging it in but it is great for the purpose of convenience. Just drop it on the charger when you are not looking at your phone... just one downside: the charging back makes the phone thicker and you cannot use most of the cases. If you don't mind a naked phone, go for it.
Click to expand...
Click to collapse
reasonable question if you drop that on the pad and just leave and not go back what would it matter if it was plugging and and left? then you'll come back to a more of a charged phone lol

i use my phone all the time. to have a wireless charger is pointless to me since i cannot use it while its charging, its worthless. using the wired method not only lets me charge but also use my device as needed. its 100% crap if you ask me.... unless you're the type of person that doesnt use their device all the time and can be away from it for 3 hours +

I have the (Fast Charging)CHOE Qi Wireless Charger Kit. Didn't have to change any of my OEM. It is slower than the cord but I usually charge overnight anyway. I like grabbing it right out of bed and going. It's 50/50 for me. Probably didn't need it but now that I have it, it's cool. I got it off Amazon so it wasn't that expensive.
Sent from my SM-N900T using xda app-developers app http://www.inflewential.com

Plugged is the way to go.
Until they come out with a wireless method like you stated (without leaving it on the charger) then I will just stick with the wire.

is it worth it to buy official equipment for wireless charging? no
is it worth it if you buy after market? yes! less than $25 bucks and you can have a wireless charger. yes it won't charge as fast as a plugged in charger but if you are charging overnight and want to protect your usb ports, check emails thru the night (i do it for business), and don't necessarily like wires on the side of your bed, i can't see a reason not to.

mixxy said:
is it worth it to buy official equipment for wireless charging? no
is it worth it if you buy after market? yes! less than $25 bucks and you can have a wireless charger. yes it won't charge as fast as a plugged in charger but if you are charging overnight and want to protect your usb ports, check emails thru the night (i do it for business), and don't necessarily like wires on the side of your bed, i can't see a reason not to.
Click to expand...
Click to collapse
I can definitely agree to that. I like a wire free mess on my night stand as well.
Sent from my SM-N900T using Tapatalk

Comes in handy when charging at night no need for a cable... Wireless charger is Shhhhnice!
SENT FROM MY SM-N900T/NEXUS 5 USING TAPATALK

ROADKING17 said:
Comes in handy when charging at night no need for a cable... Wireless charger is Shhhhnice!
SENT FROM MY SM-N900T/NEXUS 5 USING TAPATALK
Click to expand...
Click to collapse
It's not so wireless when you pick up the phone and stops charging. Again what's the point if you're not going to use the phone how was the cable gonna mess anything up.
Sent from my SM-N900T using xda app-developers app

Easier way to charge at my desk or night stand maybe I don't wanna bend down and grab the wire then plug it in, call me lazy but I like it. I had a s3 and s4 before try plugging in the wire into the device without turning the lights on in the dark, my s3 was cracked from the charging port area of phone all because it was dark and I'm trying to plug it in
SENT FROM MY SM-N900T/NEXUS 5 USING TAPATALK

inflewence said:
I have the (Fast Charging)CHOE Qi Wireless Charger Kit. Didn't have to change any of my OEM. It is slower than the cord but I usually charge overnight anyway. I like grabbing it right out of bed and going. It's 50/50 for me. Probably didn't need it but now that I have it, it's cool. I got it off Amazon so it wasn't that expensive.
Sent from my SM-N900T using xda app-developers app http://www.inflewential.com
Click to expand...
Click to collapse
Can you link to the kit if you don't mind? I'm a bit paranoid about most aftermarket power accessories. Nice to hear about one that works.
Sent from my SM-N900T using Tapatalk

From the moderator
To all in this thread post respectfully or do not post, if you are unsure what respectfully means look it up in a dictionary.
Thank you ~~ oka1

phil.culler said:
Can you link to the kit if you don't mind? I'm a bit paranoid about most aftermarket power accessories. Nice to hear about one that works.
Sent from my SM-N900T using Tapatalk
Click to expand...
Click to collapse
No problem http://www.amazon.com/Charging-Wire...arging+Pad+and+Wireless+Charging+Receiver ...charger
I don't have some of the cons that the reviews talk about. My phone doesn't get really hot. I don't have the little bump in the back cover. It doesn't come with a plug but does come with the USB cord. I just use the original plug.
Sent from my SM-N900T http://www.inflewential.com

inflewence said:
No problem http://www.amazon.com/Charging-Wire...arging+Pad+and+Wireless+Charging+Receiver ...charger
I don't have some of the cons that the reviews talk about. My phone doesn't get really hot. I don't have the little bump in the back cover. It doesn't come with a plug but does come with the USB cord. I just use the original plug.
Sent from my SM-N900T http://www.inflewential.com
Click to expand...
Click to collapse
Thanks, I've been looking to get a wireless charger for quite some time, maybe this will be the one.
Sent from my SM-N900T using Tapatalk

The benefit is 2 fold for me:
1) Ease. I have a Panasonic base that adjusts it's coil to line up with the phone so at night I just drop my phone on the base and KNOW that it's charging. Better than fumbling with a cable in the dark.
2) Less physical wear on the micro USB connector.

While not a wireless charger, the Amazon 9w speed charger & the Samsung USB 3.0 wire charge my phone super fast.

Wireless Charging
I did it just for the novelty factor initially. It was a good thrill, DIY mod types.
But later, I realized it is actually useful for me. I usually walk around while talking, and with Wired charger, I had to plug/unplug again and again after every call. Also, many times after unplugging, the wire slides down, and I actually have to crouch below my desk to recover it (call me sloppy, hehe). With Wireless charging, I just talk, place it back on the pad, nothing to worry about. It keeps charging while I do my work, and I also save the port (I've had port failing problems with other phones before).

Car install Questions

Hello XDA members and fellow nexus 7 owners!
After reading these forums for months or even years i decided to get a Nexus 7 2013 myself. It took me a long time since they are not being sold that much in the Netherlands.
Upcoming Tuesday it will be shipped and i can not wait to be able and install it in the car.
Setup? ---- I am going to run the nexus 7 together with my 1 din car radio. Which means i wont be using a dac or anything else just spotify over bluetooth to the car stereo and that is it.
The only addition i would like to have is a backup cam since i am terrible at parking... go ask my rear bumper he will show it.
Now i know about rooting and all that but i would like to know which camera to buy. I have seen people using a easycap and i can get one on ebay. But which setup are you running or do you recommend me to get? Any ebay or aliexpress links will be appreciated. This way i can buy the stuff and know it will surely work.
And yeah i been searching through forum and reddit. But everyone is using a different setup of rom and hardware which just makes it confusing. I already have the usb otg cable and thats basically it.
Thanks in advance!

Prepare for a world of hurt. You'd need to find a real UVC adapter then start the app each time you want to back up.
UVC and EasyCap are terrible for start up times, 4 seconds to show on mine. Oh, EasyCap drivers aren't in the system by default, the need to be installed and loaded on boot with a script.
The latest thing on the Timur's forum was to use a USB camera. Problem with that for me was they're housing are terrible. not suited for cars at all.

fr4nk1yn said:
Prepare for a world of hurt. You'd need to find a real UVC adapter then start the app each time you want to back up.
UVC and EasyCap are terrible for start up times, 4 seconds to show on mine. Oh, EasyCap drivers aren't in the system by default, the need to be installed and loaded on boot with a script.
The latest thing on the Timur's forum was to use a USB camera. Problem with that for me was they're housing are terrible. not suited for cars at all.
Click to expand...
Click to collapse
thanks alot for your reply! i decided not to do the cam install as i been reading alot of issues indeed! My nexus 7 was delivered today. Now im just having issues with charging in car and how to do that. I think the 2.1a car charger i have should be able to keep it at 100. Since it keeps my phone galaxy s8+ at 100 using navigation spotify and such

shurensly95 said:
thanks alot for your reply! i decided not to do the cam install as i been reading alot of issues indeed! My nexus 7 was delivered today. Now im just having issues with charging in car and how to do that. I think the 2.1a car charger i have should be able to keep it at 100. Since it keeps my phone galaxy s8+ at 100 using navigation spotify and such
Click to expand...
Click to collapse
Prepare for a world o... I already said that didn't I?
Are you using this in car only? The problem is the tablet can use power faster than it can charge, especially when using navigation.
Mine was fine for about a year then it started not keeping a charge. I did the battery removal mod and couldn't be happier.

fr4nk1yn said:
Prepare for a world o... I already said that didn't I?
Are you using this in car only? The problem is the tablet can use power faster than it can charge, especially when using navigation.
Mine was fine for about a year then it started not keeping a charge. I did the battery removal mod and couldn't be happier.
Click to expand...
Click to collapse
I just dont understand how that battery removal mod works. Or what i should do to achieve the same thing. Not really a genius with eletrical work unless i see pictures of everything then it is easy ofcourse.
Seems like no one in holland has this lmao. O yeah and here its only 1 week hot outside like 30C max so i dont know if its needed.

It's not so much a heat thing as the battery will drain in use. It simply can't charge fast enough. I had the problem even through winter.
I guess I left out the part where I should've mentioned to use it with the battery and see if there's an issue.
There's info but not great info on the removal mod. It's straight forward but it need "large" wiring and a power supply over 1.8amps.
Hook everything up, without installing right away, and get a feel for it. All the little details will show itself.

fr4nk1yn said:
It's not so much a heat thing as the battery will drain in use. It simply can't charge fast enough. I had the problem even through winter.
I guess I left out the part where I should've mentioned to use it with the battery and see if there's an issue.
There's info but not great info on the removal mod. It's straight forward but it need "large" wiring and a power supply over 1.8amps.
Hook everything up, without installing right away, and get a feel for it. All the little details will show itself.
Click to expand...
Click to collapse
Again you are so right! I have had the car install now some days and it drains more than it charges xD the gps is also bad which sucks. But using waze it goes into -200 mA and with only spotify on and no navigation to +150 mA. I will really need to check that battery removal mod. How did you do that? do you have some old pics laying around or a scheme? I even tested 2 new car chargers i bought 24w 4.8a and neither that keeps it charging pfft. And this with medium settings on screen brightness

shurensly95 said:
Again you are so right! I have had the car install now some days and it drains more than it charges xD the gps is also bad which sucks. But using waze it goes into -200 mA and with only spotify on and no navigation to +150 mA. I will really need to check that battery removal mod. How did you do that? do you have some old pics laying around or a scheme? I even tested 2 new car chargers i bought 24w 4.8a and neither that keeps it charging pfft. And this with medium settings on screen brightness
Click to expand...
Click to collapse
What do you mean "GPS sucks?" As it doesn't lock on satellites, or it just drains the battery more?
The battery removal mod is pretty straight forward.
You'll need an adjustable 12v power supply that puts out over 2 amps adjusted to 4.4v. This is the one I have: https://www.amazon.com/gp/product/B00C0KL1OM/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
Find an old power supply you have lying around, like for a router, and use those wires. If they're too thin the tablet will be unstable.
I'd probably look for an extra battery online in case you want to revert. And this is the part photos are needed.
I'm having problems finding the ones I saw when I did it. I'll look some more and if I can't find them I'mm take some myself the weekend.
It just involves separating the battery from it's controller and soldering the voltage regulator in place of the battery. The ground has to connected to one of the tiny black wires at the controllers connector and it's done.
I wired the voltage regulator into my radio's constant power supply and I still use a charger to the micro USB to turn it on and off.
-edit: oh yeah. here's the video from the guy that discovered the mod: https://www.youtube.com/watch?v=9N2Bh4fI8Bo

fr4nk1yn said:
What do you mean "GPS sucks?" As it doesn't lock on satellites, or it just drains the battery more?
The battery removal mod is pretty straight forward.
You'll need an adjustable 12v power supply that puts out over 2 amps adjusted to 4.4v. This is the one I have: https://www.amazon.com/gp/product/B00C0KL1OM/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
Find an old power supply you have lying around, like for a router, and use those wires. If they're too thin the tablet will be unstable.
I'd probably look for an extra battery online in case you want to revert. And this is the part photos are needed.
I'm having problems finding the ones I saw when I did it. I'll look some more and if I can't find them I'mm take some myself the weekend.
It just involves separating the battery from it's controller and soldering the voltage regulator in place of the battery. The ground has to connected to one of the tiny black wires at the controllers connector and it's done.
I wired the voltage regulator into my radio's constant power supply and I still use a charger to the micro USB to turn it on and off.
-edit: oh yeah. here's the video from the guy that discovered the mod: https://www.youtube.com/watch?v=9N2Bh4fI8Bo
Click to expand...
Click to collapse
Thanks again for your reply. I just checked that video it seems doable.
With gps i ment the lock on satellites. I found someone who was using a kind of re radiator if that is what it is called and im thinking of buying one.
I think i will just start soldering and doing that battery removal trick. Do you think i could do it and just plug it into a anker car charger? It is 5v 2.4a each slot. This is the one https://www.anker.com/products/variant/powerdrive-2-ports/A2310012
Or should i go for a dc to dc regulator as you have? I have currently 3 of those car chargers laying around all different brands but same watts.

Here's a photo someone else posted just the other day. The second wire is ran better than I did: https://forum.xda-developers.com/showpost.php?p=76554736&postcount=464
I use a 5v supply when I work on my tablet in the house, but I've heard 5v could cause problems with the tablet not recognizing when power is connected to the micro usb.
My GPS was terrible at first. Long lock times, if it locked, would drop satellites spontaneously then come right back. I even bought an external USB receiver. Then it just started working.

fr4nk1yn said:
Here's a photo someone else posted just the other day. The second wire is ran better than I did: https://forum.xda-developers.com/showpost.php?p=76554736&postcount=464
I use a 5v supply when I work on my tablet in the house, but I've heard 5v could cause problems with the tablet not recognizing when power is connected to the micro usb.
My GPS was terrible at first. Long lock times, if it locked, would drop satellites spontaneously then come right back. I even bought an external USB receiver. Then it just started working.
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Click to collapse
I guess there is just 1 way to find out if the car charger works hehehe i will give it a shot see what i manage to do. Still looking for a housing or anything to mount the tablet in for my car a renault megane II from 2003. Seems like i will have to mold and fiberglass it.