CFIO on Expansion pack? - MDA II, XDA II, 2060 Accessories

Got my XDA-II yesterday and considering stocking up with CF WiFi and SD memory.
Anyone knows if the CF slot in the backpack is CFIO or is it plain CF? (which will render CF WiFi unusable).
Shahar

I think it must support IO since they say "This Compact Flash slot supports Wireless LAN" on O2's website :-
Exclusively for Xda II, the backpack is a powerful expansion unit. The jacket provides a compact flash card slot, a 600mah additional battery and VGA/TV out, allowing you to connect your xda to a projector, monitor or even a television (PAL/NTSC).
This Compact Flash slot supports Wireless LAN, GPS, Bar Code readers as well as normal CF storage cards (including the IBM Microdrive®)

I'm still waiting for the Backpack to arrive here. I ordered it from Tek n Toys two weeks ago, but apparently their idea of "in-stock" is different from mine. Despite assurances that it would be here today (Monday), ends up it MAY come this week if I'm lucky. I wouldn't mind waiting as much if they hadn't charged my card already for something they still haven't shipped yet :evil:

By the way, I didn't think there was such a thing as "CFIO". Unlike SD, all CF slots are capable of IO. Maybe the very first CF slots that come out several years ago had limitations, but "modern" ones should all be capable of IO as long as there are drivers. I could be wrong, but I never heard of a CF-equiped device that didn't support a CF WiFi card.

CF cards/slots come in two flavours. Type 1 is generally used for memory or storage only. Type 2 is for IO type applications like GPS, Wi-Fi etc.
The backpack is documented as CF Type 2.

Just to clarify even more, type 1/Type 2 is a size differential, not really an electronic/mechanical differential. Type 1 is a thinner CF card while type 2 has that little "bump" that makes it thicker. While memory is generally the thinner type 1 and IO cards are the thicker type 2, the reverse can also be true. There are some memory cards that come in type 2 and some IO cards (like my Socket WiFi CF card) that are type 1.

Thanks all. Has anyone tried it?
Thanks for the responses. I now understand that the CF slot can accept a WiFi card.
Has any one actually tried a CF WiFi solution on the XDA-II or will I have to blow $300 for a backpack+WLAN card and be the first person on earth to try and report?

CF WLAN Support
G'day!
YES! The iMate (or O2 XDA II) CF Backpack DOES support all WLAN cards that the iPAQs (for example) support.
ie. Look on the site for Pocket PC support - ie. Make sure that there's appropriate drivers for the card for Pocket PC 2003 - and you'll be fine.
http://estore.pressd.com has a few options specifically for Pocket PC.
Cheers
Andy

Related

EXPERIMENT: Add your SD Card to the Lockup List, XDA2i

Ok,
I believe the reason for the lock up when using an XDA2i and either TT3 or TT5 is soley down to the Phone and Not the SD Card!
This is a questionable statement I know! but please bear with my little experiment, it may be usefull!
Now the only way to get closer to an answer will be for each of us XDA2i owners to post the type, make and size of SD card we are using. This way we may find certain SD cards work and certain SD cards don't. (I think we will find the XDA2i locks up no matter which card is used, we shall see!)
This way any SD cards that do work can be tried and tested by others and if we do find 1 single card that does allow the XDA2i to fully work without lockups then we can all buy it!
I think what will happen is some people will report a certain SD card doesn't work and others will report the same card does work. This in my opinion will add this SD card to the list of not working. I want this experiment to be as robust as possible, I certainly don't want to go and buy an SD card that still causes lockups or makes the problem look like the SD card is the cause and not the phone.
Being a Corporate install or using Active O2 install makes no difference at all, both cause lockups, so this is simply an SD card list only!!
Let me start this off:-
Corsair 1GB (SD1GBA0506H3S3TWM) XDA2i Locks Up
I had a lot of problems with my new XDA2i locking up after about 1/2 hour of driving with tomtom 3 and 5. I have been using a PQI 512 Mini SD with adaptor from my c500. Swapped to a Integral 512SD and my XDA2i has not locked up since.
The company that i work for import's the Mitac Mio and most of the lockups we see underwarrante cannot be reproduced, after some investigation with local customers we are fairly sure that the sd cards are causing the problems
Kingston 512MB (o2 Active) - lockups, quitting & now defunct
128MB MMC (o2 Active) - lockups, quitting
128MB MMC (corporate) - no problems
Apacer 1GB 91.B1007.200 (corporate) - none (only 2 days old tho)
EDIT: TT5 locked up this morning with the Apacer 1GB card.
The MMC card is one my wife purchased for her phone containing Robbie Williams' Greatest Hits and that we now use in "emergencies".
KingMax Platinum 1GB -- cheap 'n cheerful -- been working fine for 4 months via TT3 and now TT5
KingMax Platinum 1GB -- cheap 'n cheerful -- been working fine for 4 months via TT3 and now TT5
moby memory SanDisk 2.0 GB no problem when phone radio turned off ie (flight mode) otherwise locks up!
A-Data 1 GB - locks up, pain in the ass
Twinmos Ultra 66X 1GB - works perfect
Verbatim 512MB - works perfect
O2 ROM, locked up all the time
i-mate ROM, been running fine for 3 weeks now.
Hi,
Thanks for the replies, Please can you tell me, on the ones that do work can you recieve GPRS Data i.e. Traffic whilst using the TT5 or TT3 Software.
I can get any SD card to work with the GPRS off its when I use TT traffic it freezes.
I'm especially interested in the Imate Rom upgrade for my O2 XDA2i, does this make it work fully when using TT5 and Traffic?
Cheers
Lee
Got a 1GB SD card with 'DANE-ELEC' written on the front.
Always had lockups with XDA2i since i got it out of the box and put this SD card in it.
Locked up with the original O2 ROM, and now with the iMate ROM.
If i remove the SD card for a few days, i get no lockups at all. Put the SD card back in, and XDA2i will lockup within 1/2 hr
Avoid this SD card like the plague
been though a
kingston 512
lexar 512
sandisk 512
all lock up so far
although i think it is down to the GPS because i can get it to work without gps but as soon as it's involved it locks up
Thanks for the replies keep them coming, I have noticed a few people say certian types of SD work, can anyone else confirm these SD cards work on thiers too?
I am still a strong believer that the problem lies with the Phone, I installed the Tomtom 3 Maps (North UK) on the internal memory of the XDA2i. (didn't even have an SD card in the XDA2i)
It locked up, so how can any SD cards be the problem!
Anyway that is TT3 not TT5 but it is related to both versions!
Thanks anyhow.
Cheers
Lee
There is an update to TomTom 5 to fix known problems with PPC Phone devices.
http://www.tomtom.com/support/right...n/uk.cfg/php/enduser/std_adp.php?p_faqid=3361
Maybe this will fix it.
Nope it doesn't fix it .......
well it does in a way my xda will work fine ,connects updates (the phone is a bit dodgy as well) but as soon as it hits the wired gps it all goes pete tong and CRASH ,even if the phone rings CRASH
Well, I don't have the issues since I updated the ROM, apart from sometimes it won't reconnect GPRS until I turn on and off flighmode.
XDA IIi..
SanDisk 1.0GB - Lock up during normal usage, as well as TTN3 and TTN5
Just updated to TTN5.1 , haven't try it yet... will post update if problem solve.
XDA IIi..
SanDisk 1.0GB - Lock up during normal usage, as well as TTN3 and TTN5
Just updated to TTN5.1 , haven't try it yet... will post update if problem solve.
bryan_suen said:
XDA IIi..
SanDisk 1.0GB - Lock up during normal usage, as well as TTN3 and TTN5
Click to expand...
Click to collapse
With the XDA II (not i or s) and the SanDisk 1.0GB, I have a different problem. In normal use it is fine, but long file transfers or streaming video/music from it cause it to drop out (not literally!) It just loses the connection to the card. Removing/reinserting is the only solution.
Don't know if this is related, but the SD card type caught my eye.
I have just tried the very latest Sandisk 1Gb Ultra III SD card in my XDA2i and it locked up when using GPRS to download Traffic.
The SD card boasts speeds of 133x (20mbits/Sec) Yet this didn't work so I have still yet to be confinced that this issue is down to the SD card.
Cheers
Lee
Another £50 wasted!!!
I have just tried the very latest Sandisk 1Gb Ultra III SD card in my XDA2i and it locked up when using GPRS to download Traffic.
The SD card boasts speeds of 133x (20mbits/Sec) Yet this didn't work so I have still yet to be confinced that this issue is down to the SD card.
Cheers
Lee
Another £50 wasted!!!

What to replace Alpine (XDA2i) with?

My Alpine is nearly a year old now, and is looking a bit tatty as it's been dropped a couple of times recently. There's no serious damage, just a few chips on the casing, but since the last drop the ON/OFF button feels a bit dodgey so not sure how long it will last.
I could soon "upgrade" to a new phone or PDA on my o2 contract, but the XDA exec is too big, and I am unsure whether the Wizard (XDA mini S) will cut the mustard.
Here's what I like about the Alpine:
Fast performance
Large screen
WiFi
SD cards (but not actually useable because cards get blown up with monotonous regularity).
Here's what I don't like about the Wizard (XDA Mini S):
Processor appears to be slower than Alpine (but no definitive test results available to prove/disprove this).
Smaller Screen than Alpine.
Mini-SD cards.
I've also heard that WM5 forces you to install applications into ROM, not RAM. Is this true? I don't like this idea because the built-in ROM is very small, and once programs are installed the remaining free space will be negligeable. I'm not concerned about RAM loss, because I never allow the battery to go flat.
I would like to hear people's opinions of the XDA Mini S or suggestions for other models/suppliers to consider.
Many thanks!
i would get a hermes
Hi pmandrews!
First, let me say that I am using I-mate Jamin (Prophet) for a month now and loving it so far. Processor speed hasn't been an issue.
My reasons for choosing it:
1) WiFi, Bluetooth, EDGE, IR
2) Full SD (not Mini)
3) Size and form.
4) 2MP camera (not critical but nice)
Although I must agree with Rudegar, Hermes does look good.
Second:
A little clarification about WM5: It uses memory differently than WM 2003.
RAM is only used for running programs (like on PC), on a device that has 64MB advertised you will have about 35-30 left on a 'clean' device. ROM or more precisely flash, is used for all storage needs. Not sure about the Hermes but the Jamin leaves you about 30 MB free after EXT ROM apps are installed.
With a little reg tweak, you can unhide the EXT ROM and add 10 more megs, but I install all my apps on the SD.
The slider has been removed and there is no way of storing stuff in RAM like in 2003, but with that much flash and an SD I doubt you would want to.
Thanks, I will consider that. I suppose if the device doesn't destroy SD cards like the Alpine does then I can use SD for all my storage needs. But I dare not leave an SD card in the alpine for long periods because eventually it will get blown up, usually if the OS crashes and a hard reset is required.
cheers
Paul.
Well I had my SanDisk 512 in my iPaq 1710 for a year non stop trough countless soft resets, and quite a few hard resets (I test my apps on it) and it is still alive.
It also went through 3-4 hard resets on my Jamin while I was experimenting with it, and for now it leaves. But I only had this phone for a month.

Help me decide: Prophet or Magician?

I am finding it hard to decide which one of those to get.
Could you help me clear the following points:
The Prophet has a slower processor, right?
The Prophet has the newer OS, what are its pros/cons?
The Prophet has a better camera, how much better is it?
The Prophet has wireless lan. But wlan can be added to the Magician by means of an SDIO card, right?
The Magician is 100 Euros cheaper than the Prophet (in the offer I got).
What else did I miss?
Thanks in advance for the advice.
Go for the Prophet!
1. yes, the processor has a lower clock speed, but the processor is a dual core and has a different architecture. it is therefore less power hungry, meaning that your battery will last longer. secondly the speed is not noticably lower. It is the same as the AMD and Intel processors in desktops, different Ghz, but equally quick. Perhaps it is a little slower, but only if you play a video, run TomTom and several other applications you'll notice it. In normal use the speed differences are neglectable. Watching full screen video's or using navigation apps is no problem at all on my Wizard (TI OMAP 200 Mhz).
2. Wm5 is a hugh improvement over Wm2003 SE. It is more oriented on one-handedness and with some handy apps installed I almost never have to pull out my stylus for simple actions like I used to do with my magician. Only more complicated actions require stylus use. Furthermore WM5 uses persistent storage in flash ROM. This means that when your battery runs out, all your data is saved. With Wm2003 SE, which uses RAM for storage, all data is lost if the battery is removed or runs out. basically this means that you never have to worry about your battery running low on Wm5. This is a hugh improvement in my opinion. Wm5 uses RAM exclusively for running programs. Since WM 2003 also stores programs and data there, less RAM becomes available after installing apps and data on the device, leading to slower operations. With Wm5 all is stored in ROM, thereby leaving RAM for running them, saving you RAM and thereby working speed. I install almost all my apps and data on my device now I use Wm5, with my magician I had to really take care to install most to the Sd card to save precious RAM.
Wm5 is the new standard, all new software will be written for this platform. Slowly WM2003 software will disappear from the market.
3. I don't own a Prophet, so I cannot really judge here, but on my Magician the camera was really crappy. On my Wizard, the quality is much better and I have heard and read that on the Prophet the cam quality is even better. However, I have no personal experience with this. Perhaps someone else on the forum can answer this for you.
4. Yes, you can use an SDIO card for Wifi in your Magician. However, that takes away your SD slot. That means you can hardly save files you download through Wifi and the apps you installed on there (in order to save RAM, where the WM 2003 OS stores apps and data) cannot be used when the SDIO slot is used for the Wifi card. Sandisk has produced a combo card with a Wifi adapter and 256 MB flash memory for SDIO use, but these card are not produced anymore and from Ebay or other online sources they cost around 80 euro's (when I last looked, a year ago). This almost takes away the 100 euros price difference. Furthermore, when you want to use this combo card you have to install your apps onto that SDIO card as well, meaning either a double install or having to use the combo card all the time. It protrudes approximately 1cm from the SDIO slot. And the 256 MB is not much if you want to install MP3 or Navigation cards onto it.
The Prophet is definately the better choice in my opinion, it also features an FM radio is my memory serves me well.
Concluding: WM5, integrated Wifi, the better camera and the small speed difference in the processor make the Prophet the winner of the two.
Ok I might be a bit bias since I like my Prophet very much, but here's what I can tell you:
1) The speed is fine for most apps, and you can overclock for navigation.
2) It's quad bend, it has WiFi g, bluetooth 2 (you can have A2DP with the latest ROM), EDGE.
3) Although WM5 is a bit sluggish compared to WM2003 it has a lot of advantages, like more advance office apps, built in push mail and such. The biggest one for me is that you don't get a hard reset if your battery dies or you remove it.
4) The prophet has more memory. (true, it has the same 64MB RAM but it is all used to run apps. On the Magician it is split between program and storage)
5) The camera is 2MP + a 'macro' switch (at leas on the Jamin version). Granted, it doesn't replace my 5MP Olympus but it is very nice thing to have.
All in all the Magician is an old device and not one of the best (in my opinion) if your choice is between these 2 phones only the Prophet wins hands down.
P.S.
It doesn't have FM radio.
Sorry, my old age is playing up, I probably confused it with another device that does have an FM Radio.
As for the rest of levenum's post, I totally agree. Go for the Prophet if these devices are your only candidates.
If you are a gadget freak like me, I would suggest you to go for the Prophet. You get to play more on their new OS and WiFi. However, if you just want a PDA phone, the Magician will serve you well enough. As for the WiFi issue, depends if you use it often. If you do use it often, (for Magician) it will be a pain in the neck to have something sticking out of your phone and you will NOT have your loyal SD card around (e.g. the WiFi hogged the slot)
Some other thing that you might want to consider.
(1) Memory size. I think Prophet has larger memory.
(2) Prophet has persistent memory (e.g. you will NOT lost your stuff in the phone even if the battery is dead). The Magician relatively hardreset itself upon a dead main + backup battery. I think you have 3-7 days of time frame to have your main battery charged before a total memory wiped-out.
The one with FM is Atom, but I think the discussions here concluded that Prophet is better than Atom.. unless you get the HP-version of the Atom.
The Prophet is obviously the superior machine because all its specs are better than the Magician except one - the CPU, it sucks! It is only sufficient to get the job done on routine applications but do anything beyond routine and you will be cursing at its slowness.
The Magician is still a rock solid machine and if price is the key consideration then you will get your money's worth. But why not go for the newest model if you can afford it - the Hermes/Tytn. It has all the advantages and more of the Prophet without its Achilles Heel. The Hermes Samsung CPU at 400MHz is equivalent to an Intel XCPU at 520MHZ so you will never have to worry about performance problems. It has a larger capacity battery to compensate for the faster CPU so battery life is the same. O2 Germany is releasing it as the Trion any day now.
just to finish this:
I bought my new machine today:
Prophet!
thanks to everyone for the advice
Great! Congratulations with your new device and I am sure you will enjoy it!

Mini sd 4gb

Hello, I've seen on Ebay a minisd of 4gb.
Is it compatible with Treo 750v? Anyone has tried it?
Hey,
Ive tried one in the XDA mini S it works in mine, but doenst work in my dads? think its something to do witht he contact length on the actual mini sd card, the longer the better. BUY A WELL KNOWN BRAND!
Actually I believe it has to do with the either the operating system's or hardware's ability to address 32bit file allocation tables. 16bit FATs only address (under normal circumstances) 2GB volumes. I believe official SD specifications require any hardware requiring more than 2GB to be SDHC (SD High Capacity) wich addresses volumes differently than none SDHC hardware/cards.
So in short, without having first hand experience to try it, I do not believe 4GB cards will work on the Treo. I'm sure, however, that someone will quickly come along and correct me if I'm wrong ;-)
I found this thread http://forum.xda-developers.com/showthread.php?t=289848&highlight=sdhc and then found one on eBay from the link on that page. I won my bid and just paid for it. I should receive it within two weeks, at which time I will try to get back on here and let everyone know if it works for me.
My phone is actually a (UT Starcom) Audiovox PPC 6700 from Sprint, but I would guess that there isn't much difference pertaining to the miniSD driver and what it can/can't read. Also, I can't see WM5 having trouble with the FAT32 file system, but I could be wrong. You *can* format FAT16 up to 4GB, but it is HIGHLY inefficient compared to FAT32 at the same size.
I just hope MS releases a driver for SDHC support soon. After all, miniSD still uses the SD driver. The only difference is physical dimensions, hence why you can put a miniSD card into the SD adapter and it works in SD card readers. The pin-out is the same, etc.
Here's hoping all works well for me. I want to be able to ditch my iPod and only carry my phone.
I have not formatted a memory card with FAT 32. I do not know how WM5 will handle FAT 32 but I know that SDHC has more to do with addressing memory than simply FAT structure. There are hardware differences between SDHC and non-SDHC.
The physical similarities between the SD cards will not make up for the fact that they are internally different. Just like a CD will play in a DVD player but not vice versa. An SD card will work in an SDHC slot but not vice versa.
4GB SD cards do exist but do not fall within legitimate*SD card standards. They may or may not work based on the card manufacturer, the host device, and the direction of the wind. Keep your fingers crossed and your receipts handy.
main question open again
So coming back to the main question,
has anyone tried the 4GB miniSD card (they are all HC, FAT32 formatted) on Treo 750?
I am waiting to decide whether to buy a 2GB or go for the 4GB and come to the same capacity level as the iPhone (4GB version!).
thanks
Phal
4GB miniSD cards and the Treo 750
I've got a 750v -- had it for several months. I was using a Transcend 2GB 80x miniSD card that worked just great. No issues with "disappearing", pretty fast read/write, etc.
I wanted a 4GB card so decided I would try a SDHC card from Transcend. It does not work in the Treo 750v. Works fine in my newest PC card reader, but no-go on the Treo. Figured as much, but wanted to try.
Then I bought another 4GB card (non-HC) from eBay that was branded Topram. It suffered the issue of not being able to see the card on the Treo without doing a soft-reset first, and it was very slow in writing to it -- like 1-2MB/sec from a USB 2.0 card reader. Didn't much care for that.
Just recently bought yet another 4GB card (again non-HC) from eBay. It was a generic card. I'm getting 3MB/sec write speed from my PC card reader, which is slower than my original 2GB Transcend 80x card, but not as bad as the Topram card. On the Treo itself, it's read speed is about the same as with the 80x Transcend 2GB card, which was pretty good. Overall the Treo feels about the same with the 4GB card versus the 2GB card installed, in terms of launching Tomtom or playing MP3s.
It also does not suffer any "disappearing" or the need to soft-reset the Treo to recognize the card. I've ejected it many times and put it back it, and have never had any issues with this. I'm going to stick with this card for now, as it seems fast enough and isn't causing me any grief.
This card is shown here: http://cgi.ebay.com/4GB-MINI-SD-SEC...QtcZphotoQQcmdZViewItem?hash=item110080023472
So, that's my (long winded) story on 4GB miniSD cards and the Treo 750v.
Mark
Peteshoard said:
Hey,
Ive tried one in the XDA mini S it works in mine, but doenst work in my dads? think its something to do witht he contact length on the actual mini sd card, the longer the better. BUY A WELL KNOWN BRAND!
Click to expand...
Click to collapse
I just bought a 4GB mini SD from MobyMemory.com for my O2 XDA mini S. The first card would not register at all with the device. I sent it back and the replacement now at least registers (as 4GB) but after loading any sort of volume of data on the card/device it locks the PPC up!
What BRAND of 4GB mini SD card did you get working with your "XDA mini S" (and did you have any problems once you'd actually started using it to store anything over a few MB)?
Tresend 4gb mini-SD card doesn't work with Treo 750...
stay away from ebay when buying memory(card, flash drive, etc...)
90% of them are fake. Although they might work just fine, chances are it'll crap out on u eventually.
WISH I WOULD OF FOUND THIS SITE EARLIER.
Yeah I just bought a transcend 4 GIG mini-sd for my TREO 750. IT makes the noise as the TREO recognizes it but it doesn't show up in file manager. I have formatted it with my USB SDHC card reader, I can only select FAT32, and it shows 3.75 GIG.
NO GO ON TREO 750 (CINGULAR)
-anyone have any ideas on how to get it to work?
-Keith
please email me
[email protected]

Make Athena vibrate via touch feedback keyboard?

Hi fellow HTC Athena owners,
I realize our phones are getting old and left behind by newer models.
I've been tempted to upgrade to the newer HTC models like Desire and Obsession.
However it's a waste of technology doing so, the HTC Advantage still has a lot to offer, it's just the lack of updated software to take advantage of all its feature.
The bigger beef I've had was the lack of vibration feature.
but i realized at least with the X7510 the build in keyboard as a touch feedback feature that can be turned on/off from the default HTC home software.
If some one can code an application to make the keyboard vibrate when the phone rings/silent then that will solve half the problem.
The rest is ripping off the HTC sense and WM7 + all the newer apps from the new HTC phones, and make it work with the HTC Advantage as most have done in the past with software original from the HTC Diamond and Touch 3D, etc.
The upcoming HTC Obsssion is on WM7, it'll cool if we can port the entire set of software over to our HTC Athena phone, and give it a new lease in life.
Technology wise our HTC Athena still is far superior, with the exception of the available RAM and the ATI "accelerator", but we have 2 "hard drives" to use (internal 166GB flash, and removable miniSD can write up to 8GB, but can read up to 16GB [apparently it doesn't have enough power to write to a 16GB micro SD via the miniSD adapter]), able to hook up to almost any USB device you can think of (mouse, external usb hard drive any size, keyboard, monitor, network adapter, faxmodem, camera, anything else supported by the build in drivers), natively connect to external monitors, Svideo, video import, GPS, Camera, use both CDMA and GSM networks, wifi, stereo/data bluetooth, i can't think of any other phone/pda that is so complete as the HTC Athena.
It's just a shame it was never popular enough to attract the attention of developers to take advantage of it.
The Athena by itself it's a super mini power house, it's better than a laptop, and packed tiny enough to fit in your front shirt pocket (if you don't mind the weight) it can do whatever a laptop can do and way more.
I'm hoping to see new stuff coming for the Athena after WM7 gets released later this year, like we have with the cooked WM6.5, but still the lack of vibration mode is a big drag for me... i tried the fake vibrate using the "vibrate sound ringtone" so you are still really using a ringtone it just simulate the sound of vibrate, it sort of works, but still is not the real thing, i've tried the motor thing like shown on the x7501 topic found in this forum, but that doesn't work either.
So the next best thing is to carry pair it with our keyboard, and figure out a software to make it vibrate if some one knows how to program such thing.
Just for info : I own a x7510 and use a sandisk 16GB microsd with adapter and this works without any problems.
that's good to know, i'm doing with the adapter and 2 different brands 16GB micro SD
they both got damaged when i try to write to it, got them both exchange under warranty
but doing the same with 8 GB micro SD via adapter, then i can read and write just fine
the 16 GB works properly on other phones
32Gb
I just purchased a 32GB micro sd and it works with a sandisk adapter (i also have another adapter but this does not work) so now. I did extensive tests writing data while running op battery and it works like a charme.

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