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Replace Internal SD card?

Can I replace my internal SD card with a faster/larger one?
Is it soldered to the logic board? or just plugged inside the housing?
I tested the speed via Activity monitor, and am getting speeds ~9MB/s This is good, but I notice lag when I start playing a movie, or music.
Also Whats the largest SD card i can put into the external SD slot?
Thanks.

32Gb in the external SD slot, and I haven't noticed any lag playing movies or music on either internal or external memory.

I'd stick with a 16GB external card until the speeds on the 32's come up ...
The current flavor of (sandisk) 32GB SDHC cards is class 2.
From what I can tell byt looking at pictures of the PCB's in the phone the internal SD card is integrated on the board ... I do not believe it can be modified or replaced ...

Well thats sux. Does anyone know what the speed rating is on the internal SD? Like I said I was getting ~9MB/s non formally viewing Activity Monitor on my mac while adding files.
I will try to run some tests to see what the actually speed is if noone has an answer.

Here we go. See screenshot of Disk test from XBench 1.3. The SD card could be a Class 4 I think.

wpb2 said:
Can I replace my internal SD card with a faster/larger one?
Is it soldered to the logic board? or just plugged inside the housing?
I tested the speed via Activity monitor, and am getting speeds ~9MB/s This is good, but I notice lag when I start playing a movie, or music.
Also Whats the largest SD card i can put into the external SD slot?
Thanks.
Click to expand...
Click to collapse
It also depends what format and video player your using. For example on rockplayer I have a 2.2GB 720p 2001 space odyssey that won't even play but it plays perfect on the samsung video player. However i also transformers 2 1.1GB 720p that plays on rockplayer but its choppy and that also plays perfect on samsungs video player

@wpb2
2MB/s = class 2
4MB/s = class 4
6MB/s = class 6
I'd say its class 6 judging by your uncached read/write speeds of 6.10/7.41 MB/s. I think thats as fast as you're going to get for SD cards.

I have a Kingston 16GB class 2 SD card and with a 8kb buffer I get 16mb/s reads and 13mb/s writes. The internal NAND gives me 14mb/s reads and 0.5mb/s writes. Go figure

wpb2 said:
Well thats sux. Does anyone know what the speed rating is on the internal SD? Like I said I was getting ~9MB/s non formally viewing Activity Monitor on my mac while adding files.
I will try to run some tests to see what the actually speed is if noone has an answer.
Click to expand...
Click to collapse
It sounds like you are measuring write speed. This would not affect playing movies. when you see lag playing the movie, are your playing it on the mac or the phone? I have watched some HD rips on my phone, and they play amazing.

wpb2 said:
Can I replace my internal SD card with a faster/larger one?
Is it soldered to the logic board? or just plugged inside the housing?
I tested the speed via Activity monitor, and am getting speeds ~9MB/s This is good, but I notice lag when I start playing a movie, or music.
Also Whats the largest SD card i can put into the external SD slot?
Thanks.
Click to expand...
Click to collapse
My question is how does the worlds leading manufacture of Flash memory go with an internal SD card for their flagship top of the line Android phone. What a dumb move.

Battlehymn said:
I'd stick with a 16GB external card until the speeds on the 32's come up ...
The current flavor of (sandisk) 32GB SDHC cards is class 2.
From what I can tell byt looking at pictures of the PCB's in the phone the internal SD card is integrated on the board ... I do not believe it can be modified or replaced ...
Click to expand...
Click to collapse
Sorry to reply to an old thread but I have a question.
Could I replace the board in a Verizon Fascinate with one from a Vibrant, Captivate or Epic 4 G to bump it up from 2GB to 16GB or are the GSM/CDMA radios also integrated into this board as well.
A Franken-ate mod if you will...

angermeans said:
My question is how does the worlds leading manufacture of Flash memory go with an internal SD card for their flagship top of the line Android phone. What a dumb move.
Click to expand...
Click to collapse
Is this your first ANdroid phone? All of them have internal sd and option for external, 16gb is pretty big for and internal and I use my exteral for viewing media, no problem. The argument is stupid.

SD? We don't need no steenkin' SD!
OK, Samsung just calls their built-in flash memory an "internal SD" as a convention to help end-users think of it as being functionally different from the 2GB of internal system memory. It might even be interfaced similarly to SD specs, but there is not actually a removable MicroSD card inside your phone. Just think of it as a metaphor.

The internal SD card is not an actual SD card. It is a chip of flash memory that is not user replaceable. The performance issue is a software issue.

I have often wondered, as there is a micro sd sized removable panel, sealed with a screw that is behind the battery slot.

Micro SD - slow speeds, help!!

Hi guys
i recently received my Sandisk Class 4 16gb micro sd card, but im getting pretty slow speeds with it.
Its currently in FAT32 format.
When transferring files from my computer to the card via the usb cable, im getting 3mbps, which is much slower than what ive seen others get with a class 2 sandisk microsd card.
Also when i test the card using 'SD tools' in the app market it says it should have write 5.7, read 10.4, which is not what im getting and still slower than results ive seen others get with class 2 sandisk microsd cards.
I also have an old 2gb Verbatim card (with no class markings), which is currently in FAT format (not FAT32), that came free with an old phone, that seems very quick when transferring files, much quicker, and in SD Tools it gets - write speed 2mbs, read speed 17 mbps.
Questions -
What format should i set the card to maximize performance (not using app2sd)?
Is a smaller capacity card of the same class faster?
(is a class 4 8gb faster than class 4 16 gb?)
Is FAT faster than FAT32?
Is my card defective?
Should i return it for a class 2 as they seem to be faster?
Hope you can help

For starters, which of those 2 file system is really faster don't matter because you cannot use FAT16 on your 16GB card. FAT16 only supports up to 2GB.
Also, class 4 is suppose to be faster than class 2.

sounds like you got a fake Sandisk Class 4 16gb, a knockoff market imitation with low quality component
what is the actual speed test result of the write?

AllGamer said:
sounds like you got a fake Sandisk Class 4 16gb, a knockoff market imitation with low quality component
what is the actual speed test result of the write?
Click to expand...
Click to collapse
Thanks for the reply allgamer, I've seen many of your posts on these boards and your very helpful
My actual write speeds are 3mbps, when transferring from my pc to the phone via usb cable.
I got the card from play.com so I didn't expect it to be fake. Are there any other tests I could do to confirm its authenticity?
Should I try different file systems like ext2 or fat etc?

3MB/s for a class 2 card is pretty good. I don't what you can expect more from that.
I have an Kingston 16Gb Class 4 and the writing speed from pc -> phone is like 2MB/s, much slower then it should. But in SD Tools its shows 4 or 4.8 MB/s writing speed.

dukuletz said:
3MB/s for a class 2 card is pretty good. I don't what you can expect more from that.
I have an Kingston 16Gb Class 4 and the writing speed from pc -> phone is like 2MB/s, much slower then it should. But in SD Tools its shows 4 or 4.8 MB/s writing speed.
Click to expand...
Click to collapse
The card I got is a class 4, and being a san disk I expected better write speeds.
What is really confusing is why the 2gb card (with no class markings) I got free with an old phone is much faster at transferring files via usb despite it getting a much lower score in SD tools.
Can anyone explain that?

Slow SD Card Issue's

Does anyone else have an issue with there phone telling you that your SD card is slow ?
I had a Sandisk 64gb Micro SD card and when i formatted it to use it as internal storage it told me the card appears to be slow and some apps may become juddery....
So i purchased a Sandisk Extreme Class 10 64gb memory card but get exactly the same message, am i missing something ?
Cheers

wakers said:
Does anyone else have an issue with there phone telling you that your SD card is slow ?
I had a Sandisk 64gb Micro SD card and when i formatted it to use it as internal storage it told me the card appears to be slow and some apps may become juddery....
So i purchased a Sandisk Extreme Class 10 64gb memory card but get exactly the same message, am i missing something ?
Cheers
Click to expand...
Click to collapse
I seem to have the same problem except I don't have the option to go ahead and format it. It says: SD card too slow for use as internal storage. This SD card is too slow for use as internal storage.
To format an SD card as internal storage, try using an UHS Speed Class 3 SD card. This was with a Samsung Evo Class 10 SD card. I then went and got a UHS speed class 3 SanDisk Extreme card like it specifies and I still get the same error. It won't let me go ahead and format it.

Apps on SD card in "merged storage" lag

Hi,
I have my SD card (class 6) merged with my internal storage. Every app I move to the SD card lags like hell! They work perfect when on the internal storage. My storage is starting to fill though as it's only an 8GB device. Any ideas? I've been thinking that if I get a class 3 uhc SD card (they reckon they're up to 60 MB/s) but I'm not sure is that the problem?
Thanks for your advice.

Class 10 should be bare minimum. I am pretty sure the class 6 card is the cause. Uhs 3 is recommended.
Broadcasted from Zeta Reticuli

I would concur with @Gravemind2015 your card is too slow... Although I think a minimum UHS1 card is required to make it usable due to the higher write speed than a Class 10, but I do agree a UHS3 is recommended.
A Class 6 card is just too slow for use as adopted storage, I would convert it back to portable until you can get a new card or it will constantly lag on you.

Thank you for your help
I've bought a UHS Class 3 card, installed it and it's solved the problem.

acejavelin said:
I would concur with @Gravemind2015 your card is too slow... Although I think a minimum UHS1 card is required to make it usable due to the higher write speed than a Class 10, but I do agree a UHS3 is recommended.
A Class 6 card is just too slow for use as adopted storage, I would convert it back to portable until you can get a new card or it will constantly lag on you.
Click to expand...
Click to collapse
sir can i ask? i got same problem here, now i used sandisk micro SDHC UHS-I Class 10 16GB speed up to 48mb/s. but i still got lag, that laggy was from my phone or my sd card? if it cause by sd card, and than i'll buy UHS-3 class 10 speed up to 90mb/s. it will solved my laggy? i used Moto g4 plus 2/16 run with MM 6.0.1

jincuriki said:
sir can i ask? i got same problem here, now i used sandisk micro SDHC UHS-I Class 10 16GB speed up to 48mb/s. but i still got lag, that laggy was from my phone or my sd card? if it cause by sd card, and than i'll buy UHS-3 class 10 speed up to 90mb/s. it will solved my laggy? i used Moto g4 plus 2/16 run with MM 6.0.1
Click to expand...
Click to collapse
The card reader in the 3rd and 4th generation G devices is UHS-1, it's write speed is limited in real world use is limited to about 45mbps, or about 1/2 to 1/3 of the embedded storage chip... You will always have some lag by comparison. Will a U3 card be better? I can't answer that definitively since it would vary based on your specific usage.

SD Card Recommendations

Anyone use Samsung micro SD cards in their U12 (or other device)?
I've used SanDisk exclusively the last few years, and PNY before that. But, the Samsung Evo cards are consistently $10-$15 cheaper for a UHS-3 128gb card.
Just wondering if anyone else uses them, and how well they work for 4K videos.

the Samsung ones are the best, but the PNY 256GB is UHS III class 10 speed V30 A1, and works very well on my HTC U12+, for the price worth each penny

Ricardo_G said:
the Samsung ones are the best, but the PNY 256GB is UHS III class 10 speed V30 A1, and works very well on my HTC U12+, for the price worth each penny
Click to expand...
Click to collapse
I got uhs samsung microsd 64gb. I got it from my previous phone note4. No problem. Very quick read and write.

I am using Sandisk's Extreme Pro 64GB UHS-II - https://www.sandisk.com/home/memory-cards/microsd-cards/extremepro-microsd-uhs-ii for my 4K recording and playback... very fast read and write speeds with no problems to report.

AtAM1 said:
I am using Sandisk's Extreme Pro 64GB UHS-II - https://www.sandisk.com/home/memory-cards/microsd-cards/extremepro-microsd-uhs-ii for my 4K recording and playback... very fast read and write speeds with no problems to report.
Click to expand...
Click to collapse
Do you save your pictures to the SDCARD or internal storage?
I'm getting the message my SDCARD isn't fast enough when I save to it from the photo app using this Kingston SDCA3/64GBSP 64 GB microSDHCUHS-I Speed Class3 U3 Memory Card so looks like I need to upgade my card. Just that Extreme pro is over £100 so want to make sure it works without any warnings before I pull the trigger on it.
Thanks

Jump1ng said:
Do you save your pictures to the SDCARD or internal storage?
I'm getting the message my SDCARD isn't fast enough when I save to it from the photo app using this Kingston SDCA3/64GBSP 64 GB microSDHCUHS-I Speed Class3 U3 Memory Card so looks like I need to upgade my card. Just that Extreme pro is over £100 so want to make sure it works without any warnings before I pull the trigger on it.
Thanks
Click to expand...
Click to collapse
Yup, I save both 4K videos and pictures to the SD-Card with zero problems. Just make sure you don't encrypt the SD-Card as it impacts both read/write speeds which in turn results in the slow speed warning being displayed.
Cheers
Edit: I got mine at a discounted price of $95

AtAM1 said:
Yup, I save both 4K videos and pictures to the SD-Card with zero problems. Just make sure you don't encrypt the SD-Card as it impacts both read/write speeds which in turn results in the slow speed warning being displayed.
Cheers
Click to expand...
Click to collapse
Cool, think gonna have to buy this card as my old card that worked fine in the HTC 10 and u11 is not encrypted and still get the warnings.
Thanks!

Jump1ng said:
Do you save your pictures to the SDCARD or internal storage?
I'm getting the message my SDCARD isn't fast enough when I save to it from the photo app using this Kingston SDCA3/64GBSP 64 GB microSDHCUHS-I Speed Class3 U3 Memory Card so looks like I need to upgade my card. Just that Extreme pro is over £100 so want to make sure it works without any warnings before I pull the trigger on it.
Thanks
Click to expand...
Click to collapse
I was getting the same message for my transcend card, I almost bought a new sandisk card, and stumbled onto the storage settings for the card on the phone. It gives me the option to format the card for the phone. It says that after formatting, the card will only work with the the phone. I am ok with that because it is for the phone and I like to store my pics on the external sd card to not waste space on the internal. Just go to settings > storage > portable storage (select the setting icon next to your sd card) > format