For questions about the hardware of Android devices

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2
votes
1answer
817 views

Is there a hardware or software limitation to how long smartphone can record video? [closed]

Besides the obvious battery and storage limitations, are there any limits to how long can a smartphone record video? For example, could the image sensor overheat after an hour or more? Would the ...
1
vote
0answers
312 views

gionee e7 mini screen lock problem

I aam using Gionee E7 mini. My phonee is working perfeectly but as soon i pick up up any call, the screen loacks and it reopens only when the other side hangs up.I am not able to disconnect any call ...
1
vote
1answer
6k views

What are the differences between the two Samsung Galaxy Tab 4 7.0" models?

I have just got a new Samsung GALAXY Tab 4 7.0" (SM-T230NU). What is the difference (or improvements) between the 'stock' SM-T230 model GALAXY Tab 4 7.0" and the 'newer' SM-T230NU, recently released ...
1
vote
0answers
191 views

Android tablet I2C Read Errors

i've a brand new Ramos i9 tablet and have big issues with the touchscreen and charging. I've rooted it, and before i send it in for repair, i'm trying to debug the issue (in hope it's only software). ...
0
votes
0answers
644 views

Help! Xiaomi Hongmi S1 Recovery

My Xiaomi Hongmi S1 couldn't pass the boot phase after me trying to install Xposed. Then, the software Mi Phone Manager tried to recover the system files with the phone in fastboot (in this phase I ...
2
votes
1answer
519 views

How do timers and alarms function while the device is sleeping?

I would like to preface this by noting that this is not a developer question, more of a interest to know how this particular aspect of Android works in relation to the hardware found in smartphones ...
1
vote
1answer
1k views

Touch screen is not working properly after replacing LCD display and Touch screen

I recently replaced LCD display and Touch screen of micromax canvas A116. but unfortunately my touch screen is not working properly. so my question is that is it because of some hardware issue or ...
0
votes
1answer
3k views

S4 won't boot into ClockworkMod Recovery

I have a Verizon Samsung Galaxy S4, and am trying to install CyanogenMod 11 Snapshot, but I'm stuck. I installed ClockworkMod Recovery using Loki, but whenever I go into recovery with my phone, it ...
0
votes
1answer
99 views

How to directly measure or read the screen capacitance

I am looking for a way to directly measure or read the (total or individual grid) change in capacitance as observed by the touchscreen of an android device. Is it possible to achieve this with the ...
1
vote
1answer
106 views

Is the back Chassis for the Canadian Rogers I747M the same as I747 T999?

The camera protection lens on my Samsung Galaxy S3 I747M broke some time ago. The camera itself stopped focusing correctly some time ago as well due to that. At some point, I had to have the camera ...
1
vote
1answer
1k views

Identifying an unknown Android tablet through adb/shell without relying on build.prop

I obtained a cheap unbranded tablet from a friend, without a box or anything and I need to figure out what kind of tablet it is, through software. What I've established so far is that the tablet is ...
0
votes
3answers
10k views

Is OTG support on a phone is a Hardware dependent feature

I will be buying a Xolo Q800 -X-Edition Phone that has a MediaTEK MT6589 chipset. Searching on all forum sites, i found that this phone does not support OTG. So i want to ask that does OTG ...
0
votes
2answers
367 views

Why newer android versions drain the battery faster?

I've got an Android phone whose stock Android version is 2.1. I've tried several times to install some custom ROMs (mostly Cyanogenmod based) with Android 2.2 and 2.3. The full charged battery lasts: ...
0
votes
1answer
61 views

I opened my phone and tore the power circuit, can it be joined back?

I wanted to reseat my phone speaker because it wasn't working. In the process of dismantling my phone, I tore the power button's circuit. What kind of adhesive can I usually use to join it back ...
0
votes
1answer
55 views

Is there any way to check the phone before buying a new device

My friend is buying xperia Z1. The actual price of the phone is around 40000 INR but he is getting it around 25000 INR. It has 1 year seller warranty with all accessories.He said the phone is ...
1
vote
0answers
19 views

How does the Samsung Galaxy wake-command work?

How does the Samsung Galaxy wake-command work? Is the microprocessor always on? Or does it wake when it detects sound?
0
votes
1answer
95 views

Phone not switching on

So I am using my Sony Xperia Neo L, and I accidentally dropped it on the ground and the battery comes out. This has happened hundreds of times before. When I insert my battery back in, the flashlight ...
1
vote
1answer
114 views

SGS2 mobile connectivity/GPS intermittent problems after DIY repair

Looks like my SGS2 started to have mobile connectivity/GPS problems, possibly as a result of DIY repair (I manually replaced LCD+digitizer after an LCD damage): GSM signal level frequently drops to ...
4
votes
4answers
17k views

Will I be removed from groups on WhatsApp if I upgrade to a new phone?

I was removed from all groups before, when I changed my number. Will the same happen if I change my phone? This time, I have the same number but a different phone.
1
vote
0answers
3k views

What should I try to bring a rear camera back to life?

I have been handed an H801+ Android phone, where the rear (main) camera has stopped working, and I have been trying to fix it without much success. I am looking for ideas as to what to try next. The ...
1
vote
1answer
199 views

Help identifying tablet

I don't know if here is the right place to put this but I need your help identifying what I believe is a Chinese tablet that a friend of mine received as a gift. The problem is that it is locked in ...
2
votes
2answers
3k views

SGS2 screen gets more and more dark blue, possibly after overheated charging

My phone screen is gradually becoming dark blue and then black--see photo. Started with a single light blueish edge, and growing during the last hours to what can be seen on photo. The only serious ...
0
votes
0answers
914 views

How to Remap the Hardware Buttons On Your Android Phone

I want my return hardware button (capacitive touch buttons) to turn into recent apps button. Please help me out. I don't use return button enough.
1
vote
0answers
79 views

Internal storage interface [closed]

What interface is used to read and write the internal storage of the phone? SPI? I2C? SATA? SD? If the answer varies from phone to phone, I'd like to know the interface of the Samsung Galaxy S II ...
1
vote
4answers
26k views

How can I physically remove the internal memory device from my Samsung Galaxy S2?

My Galaxy S2 has recently died completely over night. It does not turn on regardless of which combination of buttons I try and how long I press them. I've tried with two different batteries, without a ...
0
votes
1answer
785 views

How do I connect my tablet to my tv?

I broke my Coby Kyros' screen and now I want to make an emulator console out of it. The problem is my model did not have an HDMI out. I noticed that there is a ribbon cable connecting the tablet ...
0
votes
0answers
158 views

How to evaluate generic no-name tablets?

I have pretty much decided to buy a cheap Chinese generic / no-name tablet before I leave Taiwan. This will be my first Android and my first touchscreen device of any kind. I'm buying something very ...
0
votes
0answers
149 views

Replacing Samsung S3 Mother Board

I have experienced problems with my Samsung Galaxy S3 mother board and I want to replace it with a new one. Does the new motherboard come with OS installed in its ROM as its default OS ?
1
vote
1answer
6k views

Mobile network not available on unlocked Active

I purchased a "new" unlocked Samsung Galaxy S4 Active SGH-I537 phone on E-Bay. Everything works fine except when I use the phone with my local carrier SIM card. When I insert the SIM card and turn on ...
3
votes
1answer
204 views

Setting a Hardware ID on an Android Tablet

I wonder if I could get some guidance. We purchased 6 android tablets for our kids over Christmas and shortly after we also purchased McAfee Live Safe so that we cold protect all these devices. Now, ...
1
vote
2answers
997 views

How can I test if my GPS has a hardware problem?

Some days ago, my GPS stopped working. It doesn't lock, no matter how long I leave it on. I've read this question but had no luck. Sometimes it reports that it found one GPS satellite available, ...
2
votes
0answers
78 views

Galaxy Note 3 requiring pin for lock-screen due to e-mail account

After syncing my work email with my new Samsung phone I received an on screen notice that in order to have the account synced with my phone I was required to have a password on my lock-screen. This ...
1
vote
1answer
6k views

Samsung Galaxy Ace 3 has USB OTG (On The Go)?

Samsung Galaxy Ace 3 supports USB OTG (On The Go)? I've dedicated a long time to research, both in Google and on specialized sites (rich in Technical features), but I could not figure out if this ...
1
vote
2answers
1k views

How to create a hardware shortcuts in Android 4.3?

I have Samsung Galaxy S4 GT-i9500 running the latest firmware with Android 4.3. I want to create "hardware shortcuts". For example, if I hold volume up and home at the same time, then it'll open an ...
2
votes
1answer
68 views

Ignore crack in Android screen (and entire front panel) or take some action

My Galaxy S3 was in my jeans pocket when I leaned over to pick something up that I dropped under the table. A few minutes later, when I took out my phone, I saw a long diagonal crack from one side of ...
5
votes
1answer
172 views

Damage risk of using flashlight

I'm using a flashlight app on my Xperia L phone. I accidentally turned on the flashlight, but noticed it only 4 hours later. I turned it off then. Is this keeping the flashlight on for a long period ...
3
votes
0answers
70 views

Inspection checklist for new android mobile devices

Many factory faults and bugs in an android device are discovered by the user long time after he/she receive it. Early discovering of faults/bugs in a device is needed when there is a short return ...
1
vote
0answers
2k views

How to type quickly and use the full ASCII character set [closed]

Probably 90% of my time on my phone is spent typing. So I like to be able to do it quickly. Also, because I take complex notes and write code on my phone, I would like to be able to have the full ...
5
votes
3answers
517 views

Determine strength of the cell antenna in an Android phone to ensure good cell reception

In some parts of the world, the cell towers are few and far between. In places like these, when someone is shopping for their next smartphone upgrade, they need to consider cell reception. Boosters ...
2
votes
2answers
735 views

Partially dead digitizer - any way to change slide to unlock?

The middle third (long-narrow thirds way) of my digitizer seems to have crapped out. Diagnosed from having vary hard time unlocking and weird selection issues, to suspecting digitizer, to getting a ...
2
votes
1answer
654 views

Physical placement of specific sensors in Google Nexus 7 (2012)

I am working on a project that requires me to know where specific sensors are physically located inside the device. I can estimate the location of NFC and light sensor (of course) but what about other ...
0
votes
1answer
3k views

Samsung Galaxy S III mini - Cannot turn Bluetooth on

I have new Samsung Galaxy S III mini (GT-I8190N) with Android 4.1.2, and I cannot turn on Bluetooth. When trying to do it from Settings menu, switch toggles from "O" to "I" position, but remains ...
3
votes
2answers
3k views

Hardware backed Credentials Storage on Galaxy Nexus

First, I hope I choose the right stackexchange for that question. Android 4.3 introduces a "Hardware-backed" Credential Storage. If I go to Settings->Security under the "Credentials-Storage" Header ...
3
votes
4answers
2k views

Phone dropped in water - Now screen won't turn off (Samsung Galaxy S2 (SII))?

I currently have a Samsung Galaxy SII (S2)(I9100) that got dropped in water. I took the phone apart (removed the screws on the back and properly took the back off) and left it to dry in a warm place ...
0
votes
1answer
643 views

How to get your data(Photo's/Video's) from your broken phone? [duplicate]

Last week my Samsung Galaxy Fame broke, everything still works only the screen doesn't work anymore. It won't react if you touch it but it still works when you unlock it, so basically you can't do ...
0
votes
2answers
64 views

which hardware spec affects smoothness most?

I am reviewing a few android tablets online and I would like to know which hardware spec (for example, CPU speed, RAM capacity etc) has the most significant impact on the smoothness (aka fluidness) ...
1
vote
0answers
266 views

How is GPS stack organized on Android, down to UART level? [closed]

I had some reading on location faking, and got eye caught on the report of using "fake NMEA data from UART port". Can anyone clarify, does Android GPS stack HAL supports direct access to one of the ...
1
vote
1answer
488 views

What kind of hardware problems is a cheap Android phone likely to have?

For development and application purposes an organisation I am with is considering buying a cheap Android handset here in India (this is the handset). But what kind of problems can one anticipate in ...
-1
votes
1answer
2k views

can i use my android phone as a bluetooth receiver for my pc [duplicate]

is it possible to connect my phone with usb cable to my pc and use the phone as a Bluetooth receiver
0
votes
2answers
337 views

How do I troubleshoot the touch screen on an HTC Evo Shift?

My husband's HTC Evo Shift took a swim in some iced coffee and the touch screen doesn't work at all anymore. I did a full factory reset, which didn't accomplish anything. The screen doesn't respond at ...