yashsingh1/xdaforums huggingface dataset:
[HD2 Android Q&A, Help & Troubleshooting and Genera] daddydwreck:
Maybe its the radio?

I work in Electronics in walmart and have been planning to purchase the powermat for awhile. One day i just took one opened it up and put it on my phone. It didnt work. So i repackaged that and opened another. Still no luck. The same with the third. I own a tmo usa hd2, yellow reset key.

Someone mentioned something about the radio early on. I run the 2.15. something radio. Hopefully someone can test out one of the stock radios for the device to see if maybe that could be the problem...
[HD2 Android Q&A, Help & Troubleshooting and Genera] reinspired:
Has anyone find a solution for this? I am currently trying everything possible to make it work...so far nothing yet. :-/
[HD2 Android Q&A, Help & Troubleshooting and Genera] huggs:
Could one of you guys test with a volt/ohm meter which of the 3 contacts inside the battery cover where the powermat cover makes contact are + and - and what voltage they recieve?

My micro-usb port is broken and i'd like to try and make a charging port using those 3 contacts, but don't want to fry anything by doing it by trial and error.

TIA
[HD2 Android Q&A, Help & Troubleshooting and Genera] reinspired:
There's two pins that go on the two outer terminals on the hd2. Its at 5 volts 1A.
[HD2 Android Q&A, Help & Troubleshooting and Genera] reinspired:
If that helps?

_________________________________

HTC HD2 Android 2.3.3

The Ultimate Droid 3.2.0

Extended Battery 2600 mAh
[HD2 Android Q&A, Help & Troubleshooting and Genera] DKxda:
has anyone tried different radios? Haven't seen a mention, could be a possibility.
[HD2 Android Q&A, Help & Troubleshooting and Genera] donhu:
i have 2 hd2s both running the same exact setup: same radio, same rom, same everything. One just refuses to charge, and of course its my main one :(
[HD2 Android Q&A, Help & Troubleshooting and Genera] huggs:
I meant the 3 copper colored contacts next to the sim card, not the pins that contact the battery. I am assuming that these are what the powermat's battery cover discharge their current into. I just dont know what combination of polarites and voltage to give them to make it charge. I tried putting a chager's bared wire ends to all of them, 2 contacts at a time, in different cominations of polarity and different contacts, but no combination made the orange led light up :(
[HD2 Android Q&A, Help & Troubleshooting and Genera] rhoneil:
Volt meter shows 2.8V from center to outer contacts on the HD2 that works with the PowerMat and 0V and the HD2 that does not.
[HD2 Android Q&A, Help & Troubleshooting and Genera] ShinySideUpAZ:
Are you measuring the powermat, or the pads on the HD2?
[HD2 Android Q&A, Help & Troubleshooting and Genera] rhoneil:
HD2
[HD2 Android Q&A, Help & Troubleshooting and Genera] rhoneil:
When I called PowerMat they said it does not work because HTC changed their specs on the device. I have received no help at all from HTC.

Personally I feel that this design to allow for use with the PowerMat is innovative and sets it apart from any other device. Everything else needs to use the usb connector.

Looking at the new Sensation battery cover, it looks like HTC made it almost impossible to use PowerMat at all. I would be surprised if PowerMat would dedicate much time to incorporate the tech needed for the Sensation cover and risk being burned again.

I feel bad that PowerMat took the risk with the HD2 then have HTC 'disable' it. I'm just glad that I at least have ONE HD2 that works with the PowerMat as it was intended.

Sad sad day.
[HD2 Android Q&A, Help & Troubleshooting and Genera] harrystone33:
I REAAAAAAAAAAAAAALLLLLLLLLLYYYYYYYYYYYYY wish I had seen this beforehand... I bought one and can't find my receipt from Walmart (obviously!!) and now don't know about returning it.. it doesn't work on mine either..
[HD2 Android Q&A, Help & Troubleshooting and Genera] chrisgto4:
Return and get store credit
[HD2 Android Q&A, Help & Troubleshooting and Genera] thebranded:
so does that mean there are two version of the HD2's one that charges and one that was changed in some way so it does not charge?
[HD2 Android Q&A, Help & Troubleshooting and Genera] JonnieLasVegas:
Same exact situation over here!
[HD2 Android Q&A, Help & Troubleshooting and Genera] mooseman2142:
powermat...
[HD2 Android Q&A, Help & Troubleshooting and Genera] Bence:
I would like to buy powermat but I could not find shipping to Slovenia...
[HD2 Android Q&A, Help & Troubleshooting and Genera] alexdogg:
solution

heres how i solved it...

i have an EVO 4G i noticed that moving around a bit that little plastic thing that links the charging port and the door sometimes the charging light turned on just to leave it there to turn off a few seconds later so it had to do with the microusb port in the phone so i took it to a tech that had a nice soldering pen with all the sheananigans and told him to dissasemble the phone because maybe there was something wrong with the insides of my phone (charging port).. what he did is that he detached the microusb port and resoldered again and presto permanent charging light, it had to do with the port wearing off because of all the plugging and unplugging of USB cable.

anyways i hate my powermat because if i leave it at night it just reaches 100% and stops charging so i wake up and i have like 70%

dont buy powermat its a POS
[HD2 Android Q&A, Help & Troubleshooting and Genera] Bence:
I received powermat today...

When I put hd2 on it, the screen turns on, but it doesnt charge...
[HD2 Android Q&A, Help & Troubleshooting and Genera] primetime34:
How good is the powermat? Anybody used a touchstone on webos before? How does it compare?
[HD2 Android Q&A, Help & Troubleshooting and Genera] smeddy:
Dedication :)
[HD2 Android Q&A, Help & Troubleshooting and Genera] reinspired:
I have the ht04xpr0...., and it doesn't work. :(
[HD2 Android Q&A, Help & Troubleshooting and Genera] llofthou:
Never Give Up

I continued to investigate the cause some HD2 not charging with the Powermat system. I found the solution and converted the newer HD2 I purchased. The fix is rather simple although it requires some advanced soldering skills. In a nutshell, disassemble the HD2, pop off a metal cover and solder a 0.25" piece of wire between two SMT lands. Sounds simple but it is not that easy given the tiny components. There is a SMT fuse missing that prevents current from the car charger connector reaching the USB power pin. Bridging the gap where the fuse was previously installed with a small jumper fixes the problem. This is not speculation on my part. This is an actual repair that is currently working on a HD2 that would not charge using the Powermat. The SMT fuse was clearly missing. The only disassembly required is removing the rear cover. If anyone is interested please post a reply and I will take the time to make detailed instructions and a photo of the area that needs the jumper.
[HD2 Android Q&A, Help & Troubleshooting and Genera] Zsuzsika:
Hey Fella!

This is mine problem as well, take some photos and write a detailed instruction to help me please.

Regards ZSu
[HD2 Android Q&A, Help & Troubleshooting and Genera] huggs:
I'd be very grateful if you would take some pics (theres a great Android app for taking very detailed pics, called Magnifier)

and showing exactly what needs soldered, which of the 3 car kit pads need what voltage and polarity to charge the battery, and any other useflul info you have about this repair.

My micro usb port has been broken for quite some time, and I'd love to be able to charge without using an external charger.

Thanks!!
[HD2 Android Q&A, Help & Troubleshooting and Genera] llofthou:
Stay Tuned

OK, since there is a need I will post directions to do this fix. There is an excellent HTC HD2 disassembly tutorial already on this board. You can do a search to find the post. I will take a photo of the site for the repair.

You will need a soldering iron with a 1/16" diameter tip and some high quality electronic rosin core solder. Multicore or silver solder works best. You might need some solder wick to remove any excess. So, stay tuned. I should have the photo up on xda in about a week.

PS: that was my main reason for going this route; a worn out usb port. I use drop box to xfer files and the Powermat to charge the phone. Amazon was selling the Powermat + door combo for $25 at one point. I avoid using buttons and the usb for anything.
[HD2 Android Q&A, Help & Troubleshooting and Genera] llofthou:
HD2 disassembly

If you scroll down the page at...

(They wont allow links so goto...

pockethacks.com

then add the subfolder...

/category/service-manuals/

you will find some photos of a HD2 disassembly.
[HD2 Android Q&A, Help & Troubleshooting and Genera] llofthou:
The solution

There are two photos posted here for the car kit connector fix. There is a red circle on the photo centered on a component with the number 15. This is a fuse for the car kit connector. The connector itself is about a half inch to the left of the fuse. The car kit connector is the three copper pads at the edge of the board. BTW the left pad is +5VDV and the right pad is ground. These pads are visible from the battery compartment.

In a phone that does not charge with the Power Mat the fuse is missing. In this photo the fuse is present. Needless to say you have to remove the metal cover to see these components. The extra solder was my attempt to remove the fuse from this circuit board so I could install it in another phone. Removing the fuse was too difficult.

According to the diagram what you will see on the board are two horizontal silver lands about one eighth inch wide and less than a few millimeters thick. Your job, Mr. Phelps, is the bridge these two lands with some kind of conductor you solder between these two lands. (A land is a strip of copper conductor on a circuit board). A stripped piece of 28 gauge or higher Kynar wire wrap wire will work the best using silver or electronic rosin core solder. Otherwise, a single strand from a multi-strand phone wire might work as well. Be very careful not to bet any solder on the surrounding components. You will need something like a fifty power magnifier of some sort to see the area clearly, if the bond is solid and that you have not splashed the surrounding components with any solder.

.
[HD2 Android Q&A, Help & Troubleshooting and Genera] seregaprok:
Somebody made this procedure?
[HD2 Android Q&A, Help & Troubleshooting and Genera] maganz@zonnet.nl:
2nd way of checking car kit connector

Hi,

After several nights of Googling on how I could recharge my HTC HD2 with broken micro USB port, I found the Powermat solution. Luckily I Googled some more and found this thread stating that not all HD2 versions will work with the Powermat. For the record, I currently recharge my HTC HD2 via an external battery charger and have 4 batteries constantly cycling charger, wallet and phone.

In the previous posts there was talk of serial numbers of HD2 versions that do work with the Powermat (e.g. starting with SH04XPR). Also ones that don't: starting with SH07HPR and ht04xpr0.

My HD2 S/N starts with: HT9AVNW and I

believe

it will work with a Powermat. I say believe, because I didn't test with one yet. However, to have the greatest possible chance of knowing that it works before buying one, would be nice. :D

So, I had to check if my car kit connector was not disabled by HTC as mentioned in llofthou's post of 15 november 2011. I grabbed a multimeter and checked the voltage coming of the car kit connector when the phone was turned on with Android 2.3.7 booted. It seemed that the right pad gave around 0.9-1.0 Volts and the left was ground (facing back of phone with camera and flash at top). This is contrary to llofthou's posts (at least the voltage, don't know his left-right pad orientation).

Thinking that that voltage would not be enough, I also imagined it could be a small 'signalling' current which enables the car kit circuitry upon receiving 5 Volts. That lead to me to the following theory: when putting 5V to the car kit connector, the phone should go into charge mode and show it.

To test this theory I:

1. Grabbed a 5V adapter, cut off the connector and stripped the wire cover leaving the copper wires bear.

2. To know which of the two wires is + and which is - measure them with a multimeter or try to supply a 5V fan (only one combination of wire connection will work).

3. Measure with a multimeter which pad provides current.

4. Put the + wire on the pad that provides current (right pad for my model) and the - on the pad completely opposite (left pad for my model).

Shabam! Screen turned on and Android's status bar said something about USB connection being active. Later on I tested it under WM 6.5 and it immediately went to charge mode.

I also switched the wires on the pads (i.e. + on left, - on right), but the phone immediately turned off! Luckily, after reinserting the battery, the phone booted normally. However, prolonged exposure this way might lead to permanent damage! So be careful and be certain of which adapter wire is + and - AND which pad is providing current and which one isn't.

In other words the Powermat should in theory work with my HD2 version out-of-the-box. However, with this new knowledge about the car kit connector isn't there a charger which can be put on that? Perhaps a modified / refurbished car kit charger + mount?

I'll keep you guys informed on my findings..
[HD2 Android Q&A, Help & Troubleshooting and Genera] maganz@zonnet.nl:
Unfortunately, as said in earlier posts the original HTC HD2 car kit charger + mount was redesigned by HTC. The original design: wmpoweruser.com/a-closer-look-at-the-htc-hd2-car-kit/ contained a back door replacement that would probably charge the phone through the car kit mount. They never released this design, but went for a holster one: htcpedia.com/news/htc-hd2-car-kit-cu-s400.html

Maybe fix something up myself or go for the Powermat...
[HD2 Android Q&A, Help & Troubleshooting and Genera] maganz@zonnet.nl:
I ended up buying a powermat backdoor replacement via ebay in the US and ship it to The Netherlands. The price of shipping was about twice the price of the product. :p I ordered it via ebay.nl/itm/Brand-New-HTC-HD2-PowerMat-Phone-Battery-Door-Cover-Receiver-Wireless-Charging-/330877203094?pt=US_Cell_Phone_PDA_Cases&hash=item4d09d17296#ht_500wt_899

Seems to be the only reseller left that I could find on the internet.

Also ordered handy mobile Powermat version in combination with a universal powercube from the UK:

ebay.nl/itm/Powermat-Wireless-Charger-portable-charging-Mat-powercube-unversal-Receiver-/370844297497?pt=UK_MP3_Player_Accessories_Chargers_Docks&hash=item56580ae919#ht_1071wt_882

Received it yesterday and tried it out immediately. It works fine. My HD2 with Android 2.3.7 charges perfectly with the mat and it also keeps it charged to 100% once full. The only thing is that the backdoor receiver does not snap perfectly on one side of the phone. That side is just the side that connects to the carkit connector. :p Oh well, the original door did not snap perfectly on that side as well, so must be my phone housing. I can get around it by not 'snapping' the other side of the backdoor receiver.

In summary, Powermat (and its resellers) deliver! So, if you have a HTC HD2 that allows power to run through the carkit connector (see previous posts for tests) and your USB-connector is broken, Powermat offers a good option to easily recharge your phone at low prices. Watch the shipping costs though! ;)
[HD2 Android Q&A, Help & Troubleshooting and Genera] sambafr:
IT WORKS !!!!!

After many months of agony the micro USB port of my HD2 died a month ago. Thanks to llofthou and powermat my HD2 is fully charged.

For those who could benefit from this experience here is how i proceeded and it was quite easy.

First i bought a powermat cover...and unfortunately the serial is long past the limit...

Because i did not want to open it the normal way (i thought i woul never manage to put the screen in place) I Just used a dremel grinder to cut the plastic and metal behind the sim card (easier than i thought). see iloftou's drawing for more info. I arrived directly on the thing to solder. OK, it's small but not that small, i took my Hd2 to the electronic shop by the corner and he did the soldering in 5 min. Seems it wasn't a big problem for him..

Thank to all the community to achive these prodigies.

HD2 3 years old still rolling:laugh:
[Vibrant Q&A, Help & Troubleshooting] thegendler:
I have looked around and still haven't found a concrete answer to this.

What is the best way to backup and restore with Titanium Backup?

Usually, before i flash new ROMs, I will delete all backups, and then rebackup everything.

Then when I actually flash to a new one, I will restore "all missing apps + data"

Is this the best way to do things?

The reason I ask is because of some glitches I have ran into with some ROMs, specifically Axura.

I love the ROM, but whenever i restore after flashing it, the lockscreen will stay on after receiving a text message, until i turn it off manually. This is very bad for the battery if i go for a while not noticing a msg.

Any ideas?
[Vibrant Q&A, Help & Troubleshooting] jayprime:
After so many flashes its good to flash to back stock through odin. You also need to make sure to check repartition box in odin to make sure there are no skeletons in your closet. Also when restoring apps and data, only do data when going from a 2.1 rom to 2.1. Ive reaf people having problems reinstalling data from 2.1 to 2.2.

Fear the beard...
[Vibrant Q&A, Help & Troubleshooting] explodingboy70:
Another thing I do now that im flashing strictly 2.2 is only restore missing apps and essential system data such as email, accounts and sync settings, wifi settings, and messaging if I want to preserve my texts. Others that might be handy are phone settings and wallpaper settings this last will restore wallpaper and fonts and some other user settings. I have contacts set to sync with gmail. Im sure there's one or two I've forgotten but you get the gist of it.
[Vibrant Q&A, Help & Troubleshooting] disturkis4u:
I ONLY backup & user apps+data. then I use mybackup pro to back up + restore texts, call logs, bookmarks, system settings. Haven't run into any issues doing this.
[Vibrant Q&A, Help & Troubleshooting] tomasitoc:
Disturkis4u,

when you do this

are you flashing from 2.1 to 2.2

or

2.1 to 2.1 or 2.2 to 2.2?
[Vibrant Q&A, Help & Troubleshooting] disturkis4u:
I've done it for both.
[Vibrant Q&A, Help & Troubleshooting] funeralthirst:
i backup user apps and data before every flash. sometimes i batch delete previous backups if there are apps i no longer want/need just to clean things up so i can just run the install user apps+data without going through the list and deselecting ones i no longer want. i've also backed up accounts, wifi access points, and a couple other of the green options in system data. i've never had a problem after restoring.
[Vibrant Q&A, Help & Troubleshooting] _Donovan_:
Does Titanium backup restore game saves or any progress you made?
[G1 Q&A, Help & Troubleshooting] pandapus:
so my friend recently gave me his old G1, and i did some searching around and discovered that HTC made a dev version. now, being new to android, i have absolutely no clue what the differences are. i want to update my adp1 to froyo, but i get lost when i look up stuff about rooting or whatever. can anyone dumb it down for me or link me to an easy to follow walkthrough? i'm not sure whether or not guides for the g1/dream can be applied to the dev version. please help a noob in need
[G1 Q&A, Help & Troubleshooting] dhkr123:
ADP1 shipped with bootloader 0.95.3000 whereas non-ADP shipped with 0.95.0000. 3000 let you flash unsigned images. That is the difference.

Note that all 0.95 SPLs are obsolete now.
[G1 Q&A, Help & Troubleshooting] pandapus:
so how would i go about putting 2.2 on it?
[G1 Q&A, Help & Troubleshooting] dhkr123:
http://xdaforums.com/showthread.php?t=831139

http://xdaforums.com/showthread.php?t=717874

http://xdaforums.com/showthread.php?t=811620
[G1 Q&A, Help & Troubleshooting] pandapus:
x_x wow thanks

going to try and decipher these forum posts now
[G1 Q&A, Help & Troubleshooting] mejorguille:
http://wiki.cyanogenmod.com/index.php?title=Dream:Rooting

^

That is the way that most of us rooted our phones. It's reasonable simple, downgrade, type teldnetd, open telnet app, install a recovery, update radio, set boot partitions(if using customMTD)/install danger SPL, and flash CM. If you would like to get as much performance as possible from your phone, I suggest using ezterry's rom, but for that you will need to update the radio and spl through adb and fastboot, which is a little bit more advanced. If you need anything don't be afraid to ask.
[G1 Q&A, Help & Troubleshooting] pandapus:
hm so i'm looking at the instructions on the link you gave me; i won't be able to login to my google account without a 3g plan huh? i guess i'll have to get that before i do anything?

and it doesn't matter that i have the ADP1 instead of just a regular G1?
[G1 Q&A, Help & Troubleshooting] mejorguille:
Well in that case use this link, since your bootloader is already factory unlocked, you can use the fastboot commands to flash a recovery image. You will need to have adb and fastboot from the android sdk installed on your computer. There are guides in the rom bible on the development forum to help you with that.

EDIT: and try this trick for skipping the initial login so that you can use wifi to sign in if you have to.
[G1 Q&A, Help & Troubleshooting] pandapus:
unfortunately that trick does not work with the ADP1 =(

i flashed with DREAIMG.nbh and cannot bypass the setup thing; then i discovered this article: http://xdaforums.com/showthread.php?t=532719

which i completed up until the "installing drivers" step that i don't know how to complete because the computer doesn't even recognize that a device is plugged in, so now my phone thinks it's a G1 and i cannot get past the login screen and i cannot complete the ADB setup with my phone. what do i do?

---------------

EDIT: alright so i bypassed the login by swapping SIMs with a friend who has a 3G plan, but anyhow, when i plug it into my comp, i don't get an option to "Install drivers from my pc" according to the guide i referenced earlier in this post....
[HD2 Android Q&A, Help & Troubleshooting and Genera] galopoju:
Hi. everytime I mount my Sd card to put files on it (movies music, etc) I expierence something bizarre. I drag and drop and then get the transfer time bar. I can see the files in the folder on my computer, but when I disconnect my phone the files are gone. Ditto with extraneous folder I deleted or basically anything I do. If I boot into WM everything copies just fine though. Running shubcraft 2.0 with oz cleanex ROM. The SD card is the 16 GB one that shipped with the phone. While its sorta obnoxious to have to reboot to move files (esp. since I always forget until aafter ive tried to do it in android) its not something I'm gonna kill myself over. Any help would be appreciated though
[HD2 Android Q&A, Help & Troubleshooting and Genera] msoler8785:
It's a problem with the build. I don't know how to fix it but Shubcraft V1.5 was a much more stable build and didn't have this problem
[Galaxy Tab General] sp1043:
Just spent about four days with TMobile on the device getting connecting on their network (Even had a ticket). Finally found out that they had me on the wrong data plan. The device needs the Web Connect plan to connect. Being so new of a device, they had the wrong plan provisioned for me as I went straight to WiFi and did not check. I currently have my device subsidy unlocked to use my AT&T and added the Ad-Hoc supplicant which I thought was the cause. After several days, someone finally realized the plan was incorrect since a Tmo Blackberry Sim worked perfectly fine.

Moral of the story, have them check to see if you have the Even More webConnect Overage Free Plan for $39.99.