yashsingh1/xdaforums huggingface dataset:
[Raspberry Pi General] Derragon:
Hey there!

I am looking to start an open-source, non-profit project geared towards creating a handheld gaming/PDA device powered by the Raspberry Pi Compute Module. This device should be able to run emulators and games with input from an onboard controller, and should be customizable with different button configurations and different chassis with different screen sizes, battery capacities, and extended functionality. I am hoping that throughout this project I will be able to expand my knowledge of how electronics wor.

The main purpose of the project is to go over the basic design principles of a handheld device, along with engineering that goes into it. This includes PCB design, power management, engineering of components, etc.

As a basic idea, I am looking to design a base model with the following configuration:

- 3.2" or larger LCD

- Built-in speakers & headphone output

- HDMI and/or Composite Output

- 4000 to 6000 MaH Rechargeable Battery (Li-Ion/Li-Po)

- Ethernet connectivity and/or 802.11n Wireless

- Multiple controller inputs (for if it is connected to a TV for those looking to play multiplayer)

- (eventually) a Dock for hooking it up to a TV.

Obviously, I would like to keep everything absolutely open source. This includes the schematics, any customized source code for user interfaces, parts lists, etc. I am hoping to create a guide as to how the device was designed. This will go over the use of a PMIC, designing connectors for modular buttons and screens, placement of internal components, avoiding noise from power sources and signals, etc.

So far I've only realistically researched power management for the unit. The reason behind this is because overall, we only have to provide proper power outputs for the Raspberry Pi Compute module while still having features that would be required in a handheld device. Below, I will be compiling a list of components along with a list of their features that I believe is beneficial to the device.

This list will be updated as I continue to do more research.

Power Management: Texas Instruments TPS65800 PMIC (Single unit cost: $12 & $5.78 for 1Ku)

- 6x LDOs adjustable between 1.25V and 3.3V

- 2x Buck regulators fixed at 3.3V (one will be used to power VBAT, other to power 3V3)

- I2C interface (will allow for voltage adjustments and battery level indication)

- 3 GPIO ports (not sure what we'd use 'em for, but they're there!)

- Li-Ion and Li-Po charging up to 1.5A

Any help, ideas, or suggestions would be greatly appreciated. I'd like to note that I am fairly new to electronics design and am hoping this project will help to further my knowledge in the field.
[Raspberry Pi General] 5ft24:
So you want someone else to design and build it so you can collect money from a kick start for yourself?
[Raspberry Pi General] Derragon:
Quite the contrary! I was looking for help in learning how to design such a device, not for someone to design it for me. If I did get a Kickstarter going eventually, I'd personally rather have the proceeds go to the Raspberry Pi Foundation so that others can learn how to do this themselves. As I stated, everything (including parts lists, schematics, etc) would be completely open source.

As a sidenote, I think a device like this would be very interesting for kids learning how to design their own games.
[Raspberry Pi General] davcri91:
Great idea, I'd love a device like this running a well integrated retropie(Raspbian) operating system ! Unfortunately I can't help you with this stuff, but I'll spread the word :)
[Huawei Ideos X5 U8800] IneedAbetterUsername:
hello my phone is almost bricked i think...

i formatted my sd card(fat32) and put froyo dload folder to root,then the phone started so called updating and it says completed..then it rebooted few times and goes to android system recovery and error come like

e:cant mount @ (or /dev/block/mmcblk0p6)

(invalid argument)

e:cant mount cache:recovery/command

e:--->open cache partition failed

e:cant mount @ (or /dev/mmcblk0p6)

(ivalid argument)

and so on

please help me i really wanna use cm7 after downgrading
[Huawei Ideos X5 U8800] Murtazahaider1139:
In recovery select Wipe Factory Reset

Then Wipe cache and then reboot.

It should work.
[Nexus 5 Q&A, Help & Troubleshooting] digitLIX:
why does it takes 1.2 gb ram when i was with 4.4.4 it used only 600mb of ram with apps on

i barely have apps, i have 9.63 gb of space left, nfc off, low brightness.
[Nexus 5 Q&A, Help & Troubleshooting] Ben36:
It only uses about 600mb of ram -

And 113 of that was the settings i was looking at to screen shot

Sent from my Android 5.0 Nexus 5
[Nexus 5 Q&A, Help & Troubleshooting] simms22:
reboot more often, your phone will run better and will thank you.
[Nexus 5 Q&A, Help & Troubleshooting] KyraOfFire:
How and why does reboot help? Not a loaded question or sarcasm.
[Nexus 5 Q&A, Help & Troubleshooting] simms22:
it clears some caches and clears your ram from being held for one thing or another. i reboot every day, and my n5 always runs great.
[Nexus 5 Q&A, Help & Troubleshooting] KyraOfFire:
Thanks, I'll give it a try.
[Nexus 5 Q&A, Help & Troubleshooting] rogerchew:
you shouldn't have to reboot everyday. I suspect this is similar the memory leak issue that some users are experiencing. yes reboot does help, but it still comes back which isn't the solution.
[Nexus 5 Q&A, Help & Troubleshooting] jsgraphicart:
Do you use Google Music? That app caches a lot. If you want to know what takes up your storage, download DiskUsage from the Play store. I always see Google Music taking up a lot of space. Then I just clear cache in the Google Music app.
[Nexus 5 Q&A, Help & Troubleshooting] simms22:
its been like that since the very first android. and ive been rebooting once a day since oct 18th, 2008. if you dont want to reboot, dont. but your phone will be happier.
[Nexus 5 Q&A, Help & Troubleshooting] ChrKu:
This is definitely a bug. I hope Google will fix this asap.
[Android Apps and Games] yigajoel:
material clock widgets designed by AndroidCLAN

Applying the widget

1.go to widgets section

2.four clock will be visible to you

*AndroidCLAN

*Red

*Black

*Black/White

3.choose the choice of the clock you want and its applied to your home screen

4.Enjoy :)

About

The widget was designed by yiga joel martin AndroidCLAN CEO from Uganda Africa

Contacts and feedback

mobile:+256704355203

whatsapp:+256789521088

E.mail:yigajoel@gmail.com

you can like our facebook page at AndroidCLAN

thanks
[Android Apps and Games] ArnoldGarry256:
You didn't leave a link to the Widget
[Android Apps and Games] superDanielB:
Ive seen countless apps like this, why should I download yours? :confused:
[Nexus Player Q&A, Help & Troubleshooting] Elrondolio:
I am trying to setup my Flirc with the Nexus Player, for both native NP keys and the full spectrum of XBMC/kodi keys. I have all of the kodi keys working properly and the UP, DOWN, LEFT, RIGHT, SELECT and PLAY/PAUSE buttons work just fine on the main Nexus Player interface. However, the mapped BACK and MENU keys are not working. For those that don't know, a Flirc USB devices presents itself as a standard keyboard to the Nexus Player and can be programmed on your PC to learn remote control commands to activate specific generic keyboard combinations.

If anyone has a standard keyboard hooked up to their NP either via Blutooth or USB OTG, can you tell me which keys correspond to the BACK and HOME functions on the Nexus Player or if those functions are working at all on your keyboard?

Thanks.
[Nexus Player Q&A, Help & Troubleshooting] PearcePowers:
I haven't tested this yet, but typically the Windows key + ESC = HOME (or, depending, sometimes the HOME key itself on a keyboard). BACK is typically the ESC key by itself.

My FLIRC arrived yesterday -- just haven't configured it yet. I'll give it a whirl and get back to you!
[Nexus Player Q&A, Help & Troubleshooting] Elrondolio:
Thank you. I got the back key working correctly (and, in the NP, it is indeed ESC), but you'll have to go in to XBMC/kodi and add in the keymapper in programs then globally change ESC to be BACKSPACE and BACKSPACE to be ESC. Otherwise the NP back key would be "previous menu" in kodi. Make sure to update your Flirc with the full keyboard template to change the ESC key to your remote button you wish. Once done, both the NP and kodi see ESC as the back key.

I still haven't figured out the HOME key yet... I have a "HOME" special button atop my wireless keyboard that works, but I can't scancode it properly so I'm not sure what it is yet (I've read it may be scancode 57, but thats normally "space", so not sure and haven't tested it yet) I'll see if WIN+ESC works from my keyboard when I get home tomorrow. Hope to hear your experiences as well... thanks.
[Nexus Player Q&A, Help & Troubleshooting] PearcePowers:
I tested the following three keyboard commands -- WIN + ESC, ALT + ESC, and HOME -- and none work in the Nexus Player to take you home. Grr. I've got everything working but the HOME key as well.
[Nexus Player Q&A, Help & Troubleshooting] Elrondolio:
There is a topic about this over on the Flirc forums that you may want to follow:

http://forum.flirc.tv/index.php?/topic/1219-flirc-and-android-tv-adt-1/

I have a wireless keyboard that has extra media keys including a Home key (not the regular Home, End, etc). It works just like the Home key on the NP remote. I'm not at home right now, but had hooked it up to one of my laptops and that special Home key sends key code 172.

We just need to figure out how to teach Flirc that key code then map one of our remote buttons to that key.
[Nexus Player Q&A, Help & Troubleshooting] PearcePowers:
Any luck with the home key and Flirc? I noticed no one has responded over in the Flirc forums yet.
[Nexus Player Q&A, Help & Troubleshooting] Elrondolio:
Not as yet. It seems more complicated than I first thought... the record_api function of flirc_util.exe can map HID commands to remote control buttons, but finding the correct HID for "Home" is difficult. There are thousands of HID commands as referenced in this document:

http://www.usb.org/developers/hidpage/Hut1_12v2.pdf

We're looking at the ones in the Consumer Page starting on page 75. There is a special modifier in the second argument of Firc's record_api, 102, that supposedly tells the Flirc to reference that Consumer Page, but finding the "Home" key for the first argument of record_api is difficult. In other words: no. No luck yet, but still trying.

It'd probably be useful if you were to post a thread over there asking for help with the Home key on the Nexus Player as well. I'd imagine the higher the request for it the more eyes it'll receive.
[Nexus Player Q&A, Help & Troubleshooting] foolwithfingers:
Could be something that could be setup in llama or tasker? Set NP to listen for XYZ key command and then "Go Home". Just a thought.
[Nexus Player Q&A, Help & Troubleshooting] GabbyWC:
Did you manage to map a true home function to your Flirc device, Elrondolio? The ALT + ESC key combination works okay for me in most cases although it doesn't work when I use Kodi. It's still better than no home functionality at all, though, so at least I won't always have to use the original Nexus Player remote when I need that feature. There's another thread at the Flirc forum which discusses this topic at http://forum.flirc.tv/index.php?/topic/1462-flirc-with-android-tv/.
[Nexus Player Q&A, Help & Troubleshooting] GabbyWC:
ALT + TAB seems to be the ideal key combination to use for the home button. It works no matter which app you're in and although it causes the Nexus Player to display "your recent screens appear here" when you use that key combination, the on-screen message disappears as soon as you release the button.

Now if I can just figure out how to use the Nexus Player's Leanback keyboard with my universal remote so that I can select on-screen keys for searches instead of having the ENTER button close the keyboard off, that would make things just about perfect.
[Nexus Player Q&A, Help & Troubleshooting] foxnews:
I was the one that posted in Flirc forum about the alt+tab for home.

For search using on-screen, map flirc to window key using command. then combine this key with navigation right key using your universal remote, such as logitech. so WIN + Right will launch search with on screen keyboard to type.
[Nexus Player Q&A, Help & Troubleshooting] GabbyWC:
Thanks for posting your solution in the Flirc forum. I'm not trying to map a command to launch an on-screen keyboard but I'm trying to see if I can find a way to press the keys on the Leanback keyboard using my universal remote. This isn't a problem with some apps like Netflix or Kodi that have their own keyboards but for the Leanback keyboard that's used in apps like Google Play and YouTube, pressing the ENTER button on a universal remote causes the keyboard to close off. This problem does not exist with the original Nexus Player remote's select button because it is context-sensitive.
[Nexus Player Q&A, Help & Troubleshooting] xaudiblex:
Back: Esc

Home: Alt+Esc
[Nexus Player Q&A, Help & Troubleshooting] GabbyWC:
Unfortunately, the ALT + TAB key combination is not an ideal option for use with Android 6.0 Marshmallow. It actually brings up the recent apps screen and doesn't give the user easy access to the home screen (unless the recent apps screen is empty). I'll have to reprogram my Flirc back to ALT + ESC for the home screen function until someone finds a better solution for Android 6.0.
[Nexus Player Q&A, Help & Troubleshooting] whiskaz77:
I don't have a nexus player but these issues sound similar to the shield tv.

To fix the Enter key issue with the onscreen keyboard, us the flirc_util to record the keypad's enter key (a different dev id than the other enter/return key):

flirc_util.exe record_api 0 88

To record the Home button (that works from Kodi too), record Windows Key + Enter (the main Enter key works fine for this). Again, I don't have a nexus player but I assume it will work for it as well.
[Nexus Player Q&A, Help & Troubleshooting] GabbyWC:
I tried out these key combinations with my Flirc on the Nexus Player and am happy to report that everything now works perfectly! Thank you kindly for sharing that useful information here with the rest of us. :)
[Nexus Player Q&A, Help & Troubleshooting] whiskaz77:
Great! Happy to help. I'm glad it worked. Thanks for reporting back! :svetius:
[Nexus Player Q&A, Help & Troubleshooting] jeppo:
Windows Key + Enter => Home worked for me too!!! Kodi, Netflix and other apps now behave fine. Thanks a lot [MENTION=4102775]whiskaz77[/MENTION]
[HTC Sensation] EssCee:
Hi folks,

I would greatly appreciate some expert assistance.

I have two HTC Sensations.

The First (my daily use):

MID: PG58***** (appears to be a genuine Sensation XE. Tho not the headphones...)

CID: 11111111

Baseband: 11.69.3504.00P_11.22.3504.07_M

FW: 3.32.401.105

Android: Codename Lungo 4.4.4

(Not the most stable, but clean and I really wanna keep the KitKat)

The Second:

MID: PG5813000

CID: VODAP304

Baseband: 11.76C.3504.00P_11.29A.3504.00P_11.29A.3504.18_M

FW: 3.32.162.52

Android: Android RevolutionHD 7.3 XE (Mike1986)

(Runs real slick but has the 'WiFi Error')

I would like to know the best, latest firmware upgrades for these, and as well as the most recommended custom KitKat ROM available, and whether it's really worth bothering with flashing the radios. FOr the second one, I may take it back to stock HTC before starting again.

All advice appreciated.

Cheers,

Stuart
[HTC Sensation] abuulala:
i recently ugraded the firmware. but didnt notice any special difference.\

use 4ext recovery...

for kit kat.... my personal faviorate is liquid smooth.. very very stable, no specific bug, fully working wifi and v4a drivers, second choice imo will be carbon rom..

for second phone use viper 5.3.0 (Latest version). u will forget all other roms, smooth, fast. fully loaded . best battery life, wonderful camera.a new link to download5.30 is added at the end of viper thread on second last page, i think .

ps dont forget to make nandroid backup from 4ext recovery, and from 4ext recovery go to tools then in the last line enable smart flash *if ur S-ON)
[HTC Sensation] EssCee:
HI abuulala,

Thanks for the response.

Will installing the Viper ROM un-brick the WiFi?

Cheers,

Stuart
[HTC Sensation] abuulala:
yes it will... i had the same issue .never had this issue after viper rom

wifi is i think just regional issue (mismatch btwn wireless nrgional setting/mobile network settingh)

viper rom does not have this wifi regional issue, just remebner to use... wipe all partition except sd card option and then flash rom

or if u dont want to change rom...

alternatively u can install wifix manager from playstore, make sure your wifi is on off position. then start wifix manager it will ask to install wifix, choose yes and reboot, after that once ur phone is fully rebooted.. start wifi and check wether it is working or not
[HTC Sensation] rzr86:
one note: wifix manager works only with S-OFF AFAIK
[HTC Sensation] abuulala:
im not sure, nvr heard of it. but i just did s-off b4that my phone was rooted n s-on, n i think i used wifix, still im nt sure, cause im a flashaholics...
[T-Mobile Galaxy Note 4 General] nguyen4514:
For those that need to use OpenVPN on your Note 4, you may notice that you cannot connect to your OpenVPN server.

This is because the default APN for T-Mobile is using IPv6. To change it back to IPv4, you will need to create a new APN. Below are the steps to do this.

1. Open "Settings"

2. Go to the "Network Connections" section and tap on "More Networks".

3. Tap on "Mobile Networks".

4. Tap on "Access Point Names".

5. Tap on the "+" at the top of the screen.

6. Enter the following settings.

Name: any name you want

APN: fast.t-mobile.com

Proxy: Not set

Port: Not set

Username: Not set

Password: Not set

Server: Not set

MMSC: See attached image. This forum will not let me add links because I haven't posted 10 times.

Multimedia message proxy: Not set

Multimedia message port: Not set

MCC: 310

MNC: 260

Authentication type: Not set

APN type: default,mms,supl

APN protocol: IPv4

APN roaming protocol: IPv4

Enable/disable APN: checked or "APN enabled"

Bearer: Unspecified

Mobile virtual network operator type: None

Mobile virtual network operator value: Not set

7. Click on the icon that looks like three dots in the corner and tap on the "save" button.

8. Choose the new APN you created as your default.

These settings should not interfere with your T-Mobile service. I've been using these settings since I got the Note 4 and it seems like everything is running as it should.
[T-Mobile Galaxy Note 4 General] tofi1:
This is very useful. Going to give it a shot tonight.
[T-Mobile Galaxy Note 4 General] nguyen4514:
While you are making these changes, you can also solve the issue with sending mms over wifi.

Seems like people have a problem sending mms when connected to wifi. To solve this issue change the following setting:

Multimedia message port: 80

By default and in the settings I posted, this setting was "not set". Changing it to port 80 should solve your problems if you have encountered them. You should be able to just edit this setting since you already created a new APN that works with OpenVPN. The APN that is entered in by tmobile is not editable.
[Galaxy Note Pro 12.2 Q&A, Help & Troubleshooting] tomic888:
Hello,

I installed the latest official update for the P900 version and tried to root the tablet with CF autoroot and Odin but it failed and now

an error message is shown on my tablet: "Firmware upgrade encountered an issue" .

I read somewhere that I should extract the recovery file from the tar. file, which I did.

But what next?

Should I add the recovery file in Odin?

Thank you.
[Galaxy Note Pro 12.2 Q&A, Help & Troubleshooting] Tintinnuntius:
Follow the instructions in this thread:

http://xdaforums.com/showthread.php?t=2794996

I had the same problem and it worked like a charm. Here's another thread where we discussed this problem as well as constant crashes that occur on the latest firmware:

http://xdaforums.com/showthread.php?t=2936428
[Galaxy Note Pro 12.2 Q&A, Help & Troubleshooting] tomic888:
Thanks very much. Fixed the issue.

Now gotta fix random reboots. :P
[Galaxy Note Pro 12.2 Q&A, Help & Troubleshooting] Yemble:
If you have successfully rooted the device, the next thing you must do is disable KNOX, which could be the source of your reboots. The latest SU GUI has an option to disable KNOX within it, so use that. You can get rid of KNOX altogether using Titanium Backup.
[Galaxy Note Pro 12.2 Q&A, Help & Troubleshooting] tomic888:
Thanks for the info.

I'll do that now.
[Android Q&A, Help & Troubleshooting] QA Bot:
Q&A for Android on Xtreamer PRO media player?

Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer.

Before posting, please use the forum search and read through the discussion thread for Android on Xtreamer PRO media player?. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.

Thanks for understanding and for helping to keep XDA neat and tidy! :)
[Android Q&A, Help & Troubleshooting] ifab76:
android on xtreamer pro

I would really like to install android on my xtreamer pro to make it more usefull. Can anyone help me out?
[Android Q&A, Help & Troubleshooting] king888:
same question

can some one help with android install on Xtreamer PRO (if its possible)

thanks in advance
[P3600 General] jcostantini:
I'm about to get my Trinity, unlocked. I live at Argentina and a friend of mine is bringing it to me. I've been trying to get the rom that would activate the GPS and the program to upgrade it but I've been unable to download it from the links I've found. It would be a good idea (may be) to start a thread where you can get whatever you may need to set up your Trinity properly.

If the Pro Users of the forum would help with it I can bet that would be really useful.
[P3600 General] drewy:
Unfortunatley what you request all used to be here. However in the last couple of weeks Microsoft have taken a very dim view of this forum hosting copies of their software (roms) and as such have insisted that they be removed.

If you have a hunt around you will find links to rapidshare etc. where these roms are still hosted (at the moment).
[P3600 General] alvinlim28:
Trinity WiKi

Hi, welcome to the club of Trinity Users. You can find all the links for trinity (or a majority of them) in http://wiki.xda-developers.com/index.php?pagename=HTC_Trinity

Also, all the ROMs have been moved to RapidShare. You can find them in this page http://wiki.xda-developers.com/index.php?pagename=Trinity_Upgrades

Have fun :-)
[Nexus 5 Q&A, Help & Troubleshooting] ahaq:
Hello

I am having a issue with nexus 5, it only charges when i restart if I'm charing and plug in direct it doesn't but when restart it does

Whats the solution to this
[Nexus 5 Q&A, Help & Troubleshooting] ahaq:
Anyone please can help me out
[Nexus 5 Q&A, Help & Troubleshooting] rahul9five:
Hello xda forum

I had got my nexus 5 off contract from California, USA and am using it in Delhi, India. I dont know if this fact is causing the problem or not, so thought i'd mention it..

So ..my device wasnt receiving the lollipop ota update so i did the clear google framework app data trick and got the update..

When the system reboots to install the lollipop it shows "error" like after 10-15℅ of completion. This was yesterday. So now i got the ota update without the clearing the data of google framework and the same problem persists. It just shows 'error' and i have to restart the phone by pressing lock and volume up key..

Help. Please.

Thanks in advance
[Nexus 5 Q&A, Help & Troubleshooting] jasonftfw:
Have you made any modification to the system? Is xposed installed? Do you have custom recovery?