[Q] Replacing microSD slot with full sized SD slot (tablet) - General Questions and Answers

Hi,
I am thinking turning an cheap chinese Android tablet (probably 7 inch) into home "sound system" or jukebox (offline use, wall mount + wall charger powered) together with my PC active speakers. It is only for a small room, I know about common quality of the sound output of such devices and do not take it as problem.
However, I would like to make it easier to store and replace albums etc. and thus need to replace the tablet microSD slot with a slot for standard SD cards (expect 32GB or more 16GB pieces) which are cheaper and much easier to remove. Are there any expected issues related to removing current slot and soldering the new one? As I know from using passive SD adapters for microSD cards - both slots should have same wiring.
Did anybody here already tried something similar? Would appreciate advices or comments.

there shouldnt be any problem with soldering a full size one on as inside sd to micro sd convertors there is no circuitry it is just a pin to pin connection. and your project sound quite cool actually hope everything goes well :good:

Yes, it's possible but i would be scared about doing something similar except if the tablet is dead and this is need to revive it.
You need a good hand to solder it, take care about near circuits! Don't keep your solder near circuits too much, just a few seconds to get you soldering!
Let us know if you'll try this mod!

Hi,
I know the circuitry is very sensitive and I planned to ask my friend who has professional soldering station. However, we just found out that the tablet we have (noname chinese 7-inch tablet without battery, but works OK on usb power) should support USB host (it is switched on in kernel and my brother found some info related the motherboard), so I will order some cheap USB host cable on Ebay and check this alternative first. It would be better for me as I could use common flash disks as music storage.
So will see.... :laugh:

Related

[Q] G Tablet Reboot with External HDD

Hello,
I thought I'd try and see if anyone else is having a similar issue.
I recently picked up a western digital 500GB passport external hard drive.
I formatted the hard drive to fat32 and double checked there are no extra partitions on the drive.
I'm mostly running CyanogenMod 7 with stock kernal lately and I've found when I hook up the hard drive, the tablet stutters a bit and then reboots.
On bootup it gets to the unlock screen, and when it starts scanning the sd card, the scanning message starts to cycle quickly and the tablet reboots again.
I restored to a backup of vegan5.1 to test on it. Same thing, on insert the tablet starts to hang and reboots.
On vegan though, on the next reboot, it would start normally, but for some reason its not mounting the drive. I search under usbdrive and don't see the folder and file i put on it for testing.
Anyone else having issues like this? Could the problem be its a 2.5" drive and no external power? I know when its hooked up, the light comes on and I can feel the drive spin up and vibrating, so not sure whats going on.
Thanks for the help
That (not enough power) sounds exactly like what's happening, I.e., the drive is drawing so much current from USB that it's either causing voltage to the gtab internals to drop to the point that it resets.
Jim
If this is the case, does anyone know what 2.5" external hdd's will work with the power requirements? (Someone who has one that does work?)
You could always get a powered USB hub, provided that isn't too inconvenient to carry around.'
Edit - Most 2.5" external drives that didn't require external bricks that I have seen have a 2 prong USB adapter. One for data and power and the other for more power only, since each port maxes out at around 500mW I think. Obviously we have only one port, so a powered hub or a jury rig.
lordgodgeneral said:
If this is the case, does anyone know what 2.5" external hdd's will work with the power requirements? (Someone who has one that does work?)
Click to expand...
Click to collapse
I think others have gotten some drives to work, but not sure if they were 500gb. Also, even w a specific model, if the current draw or voltage are just 'on the edge's of working/not working, you may or may not get lucky.
BTW, have you tried w a thicker/heavier USB cable? Thinner/smaller gauge wire has more resistance, so voltage drop would be less over a shorter, heavier gauge cable than over a longer, smaller gauge cable. I have actually had drives not work, then switched to a thicker USB cable then it worked.
Jim
On a similar note, just yesterday I purchased an external USB DVD+/-RW for use with my netbook and tablet and it would not work without a powered hub between the tab and the DVD.
My 160GB ipod classic works fine, but my 1TB external drive that has an external power source doesn't work with any of the ROMs.
Does anybody know the maximum current supplied by the GTab's USB host port?
My 2.5" 500 GB External came with only a short (single) usb A to usb mini cable.
And it gets powered up fine from every laptop/netbook I have tried. They have always displayed 500 mA max current for each port.(when I look in Windows Device Manager, USB Root Hub).
Can the G-Tab supply up to 500 mA from it's USB host port??
I want to make sure it will work on a GTab before I buy it.
confirmed working external HD on g tablet
Using tnt lite 4.2.4, i personally have a 500gb formatted in fat32 working
model 500gb free agen go flex.
I've tried the latest WD passport SE, spun up and didnt detect in astro, ES file explore or stock file viewer
i have over 100gigs on this drive, about 80 of music and some Tosh.0 and everything pops up instantly and runs all the music fine out of MORTY music player... plays perfectly. Must have for your powerhouse. Hope this answers all the unanswered questions about external HD's on g tablet.
I have not tried stock rom or any other roms.
If you are looking for different external hard drives... make sure they are LOW POWER and NOT 3.0. 3.0 seems to require a driver to work. So its kinda hard to walk into a store and buy 2.0 only devices now.
Goodluck all.... i was using a patriot xt 64gb rage flash drive before this but 130 bucks is outrageous vs 75 i paid for the 500gb seagate.

Removable storage

Hi all first thread.
So the removable storage issue is still causing some problems for folk or causing grumbles about the cost of larger storage options but I bought myself a Dash Micro for £15, I believe they cost less in the States, this little investment solves all the storage problems and tbh makes changing micro sd cards or swapping with someone much much easier.
I'm sure there are other options or manufacturers of micro sd card holders that use otg but I picked Dash Micro because it has a very low profile and doesn't stick out making it far less likely to get caught on things or break the micro usb socket.
My key ring will never be without a Dash Micro ever again.

SUPRENT USB-C & USB-A TF / SD Card Reader with OTG Support

I purchased this card reader to use with my phone and view video from my dashcam that records on a microSD card. It works very well with my 6p and the native OTG drive mounting. I was playing the videos with VLC and it had virtually no loading time or lag when playing or jumping around in the videos.
The reader has a slot for standard or microSD, I have only tested it with the microSD so far. It has USB C on one end and USB A on the other. Inside the USB A end there is also a microUSB plug that can extend from within the USB A plug. The build quality is good, the chassis is aluminum (I got the silver one) and there are caps for both ends of the USB plugs. Total length is almost exactly as wide as the 6p itself (just a hair wider) with the caps in place. Overall size is similar to a 5 stick pack of gum.
The one thing I noticed with it is that there is no branding or marking at all on the device so I wasn't entirely sure which way to insert the SD card. The slot is keyed to match the card but there is no spring mechanism so you have to insert it until it get a snug fit, then plug it in to the phone. The "top" of of the device is when the microSD slot is on top and you insert it with the contacts facing down (towards the SD slot). I did notice this morning that there is a small gap between the slot opening in the chassis and the reader itself, and when I inserted the microSD card it went almost all the way in because it had not seated into the slot but rather was going into the void inside the case. Luckily I noticed and was able to remove it without tweezers or anything, and will be mindful of it next time.
http://www.amazon.com/gp/product/B019QL9NME
Overall, would recommend as it is very flexible for all types of devices and works very well doing what it claims.

One-piece Micro USB-C Card Reader/Adapter

What kind of one-piece USB-C reader/adapter can be used to directly connected to the Mi Mix to use an external microSDXC 64Gb card as external storage to easily transfer files? I don't mean a cable that in one end is the connector that goes into the phone and then on the other end is a bulky adapter where the memory card needs to go in.. I mean a one piece, ultra small, all in one, one end is the usb-c connector and the other hand the mini slot where the memory.card goes in..
I actually don't even know if the Mix connectivity is USB2 or 3 but wondering what will work and is the fastest that once attached to the Mix just shows in a file manager Android app directly as external storage.
Thanks for the input or recommendation on a brand or model/s.. if such thing exists like for example Lexar makes for iPhone that is a 1/2" mini adapter, lightening port on one side and a back slot where the memory card goes in directly
I think you could try something like this.https://www.walmart.com/ip/Nekteck-...6447&wl11=online&wl12=483707996&wl13=&veh=sem
mdaigt said:
I think you could try something like this.https://www.walmart.com/ip/Nekteck-...6447&wl11=online&wl12=483707996&wl13=&veh=sem
Click to expand...
Click to collapse
Thanks for the info Will these be automatically recognized as external storage by the phone once plugged-in or are there any settings/tweaks that need get changed or activated for this to work as a plug-and-play storage?
Thanks again very much

Can anyone recommend a VERY small micro USB flash drive?

See, my phone (Moto X 2013) supports OTG, but does not have a micro SD slot.
It only has 16 GB of storage which has proven to fall short for my needs because I love listening to music on the go, and I have a lot of music.
Another thing is that the USB port of my phone has some short of false contact after years of use, so sometimes a little wiggle can make it disconnect, this is the main reason why I want the USB to be so small, so that when I walk with it on my pocket, it doesn't get disconnected because I touched it 'wrong'.
So that's the question, do you know of any small micro USB device (without the need of a micro USB adapter because it adds length and volume)?
Something like the Sandisk Cruze but on a micro USB form, something that looks more like the USB plug of a wireless keyboard than a USB storage device. Thank you.
As a side note, I was thinking of those phone cases that serve as external batteries, well if there was something like that but that served as a micro SD to micro USB adapter, I could use that. The thing is that I have seen no such thing for sale and even if there was, I doubt I would be able to find one for my exact phone model from 7 years ago.

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