[Q] 4 GB internal memory - myTouch 4G Q&A, Help & Troubleshooting

Hi,
I am going to get this phone shortly. Can someone please answer the following questions for me.
I have come to know that although the phone has 4 GB of internal memory only 1 GB is usable. Does this change when I install a custom rom (e.g. CM7). Can I then utilize all the space?
Another question. Does skype (video calling) work ok?
Thanks

The phone only has 1gb of internal memory, and when you install any rom, it uses some of that internal memory to store itself.

This says otherwise http://www.gsmarena.com/t_mobile_mytouch_4g-3520.php
:S

option94 said:
The phone only has 1gb of internal memory, and when you install any rom, it uses some of that internal memory to store itself.
Click to expand...
Click to collapse
Tis true: Internal 4 GB storage, 768 MB RAM
But I was pretty sure it had one..
Sent from my HTC Glacier using XDA Premium App

smakazmi said:
This says otherwise http://www.gsmarena.com/t_mobile_mytouch_4g-3520.php
:S
Click to expand...
Click to collapse
That is wrong.
By the way, Option is the man that knows his stuff, if you ask a question, and he answers, its right. Savvy?

Nicgraner said:
Tis true: Internal 4 GB storage, 768 MB RAM
But I was pretty sure it had one..
Sent from my HTC Glacier using XDA Premium App
Click to expand...
Click to collapse
It has 4 gb of internal memory, but you can't touch all but 1. You can't even see it. So as far as anyone is concerned, it has 1gb.

I'm not so sure because a Rom doesn't take up 3gbs. So the site may just have false info.
Sent from my HTC Glacier using XDA Premium App

doesn't matter how much internal storage it has, 1gb is used by the system, so it must have 1gb. whats the point of having 3gb that nothing can use. It's gotta be mis-stated specs.

I'm not always right. However, this time I'm pretty sure I am. There is only 1gb of storage for you, the system, or anything else. If you found a website that says otherwise, its wrong.
Sent from my HTC Glacier using XDA Premium App

pnut22r said:
It has 4 gb of internal memory, but you can't touch all but 1. You can't even see it. So as far as anyone is concerned, it has 1gb.
Click to expand...
Click to collapse
Is this was true, I promise we would have unlocked it for use by now.
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PC Mag confirms 1gb memory. Think the g2 is the one that is screwy like that with the 4gb onboard memory, but only 1 is usable.
Sent from my HTC Glacier using XDA App

http://tjworld.net/wiki/Android/HTC/EMMC/UnderstandingUserCapacity
This link will likely answer all of your questions. Basically it is 4GB in specification, but utilized in such a way as to have only 2GB available. Of that, some is used by the ROM itself for /system, /cache, etc, leaving us with about 1GB. FYI that site has a lot of useful information that applies to the Glacier even though he is specifically talking about the Vision. Very similar devices.
Also, I personally think it is a bit shady to advertise it as 4GB, when in fact it is actually 2GB. That's like advertising an engine as 300hp, when in effect it only has 150hp in your particular implementation. Just because the engine is actually capable, in some form, of putting out 300hp...lol Rough analogy, I know, but you get the point. Basically they really should advertise as 2GB.

Hi,
From what I've learned since yesterday the mytouch 4g actually has a 4 GB rom chip but only 1 GB is usable (same problem as the G2). The following link describes this in detail.
http://forum.xda-developers.com/wiki/index.php?title=HTC_Vision#The_Missing_2GB
The PC Magazine has 'as tested' written in front of 'internal memory' so its an observation they've made. Not official specs. Official specs for MT 4g state that it has 4 GB rom
http://www.htc.com/us/products/t-mobile-mytouch-4g#tech-specs
Regards,
Ali Kazmi

Good link Ali. Thanks. That puts the information in more layman's terms. So I think the answer to the question of whether or not it actually has 4GB is "well, it does...but it doesn't"

Related

How much RAM does vibrant have?

I know its supposed to have 512mb.
But the app manager program I'm using shows 326.
I'm not complaining, phone is plenty fast but I'm Rom crazy and I'm just making sure I didn't mess something up.
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Trev420 said:
I know its supposed to have 512mb.
But the app manager program I'm using shows 326.
I'm not complaining, phone is plenty fast but I'm Rom crazy and I'm just making sure I didn't mess something up.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
I believe the rest is dedicated to the software and free is 326. I could be wrong ..
I read somewhere that only Froyo can utilize 512 and up.
512mb on device
frankwhitten said:
I read somewhere that only Froyo can utilize 512 and up.
Click to expand...
Click to collapse
This
The current .29 kernel has a memory limitation.
Froyo comes with .32 "himem" kernel so when we get froyo you utilize all your ram
i am showing 1.16GB available for application storage.. it this the same?
ROM and RAM are different. When people speak of memory its generally referring to RAM. ROM is the storage space used for apps.
JIT and the .32 kernel would be so nice on this phone.
So does this mean we are not using all the RAM available on the phone!? That's stupid!
I agree.
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nealpatel said:
So does this mean we are not using all the RAM available on the phone!? That's stupid!
Click to expand...
Click to collapse
Unless u run android 2.2, you will not use max 512MB ram capacity. If u installed lag fix, u can use 326MB out of 512MB. Without lagfix, u can only use 256MB out of 512MB!
There is only a bit over 300 mb app ram. The rest is graphivs ram. You won't see 512 ram in froyo because normal apps can't use the graphics memory. Laughable considering the sad shape which is gaming on android.
But hey, you got sims 3!
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[Q] Am i supposed to have 100mb+ less ram then advertised

The tech specs of the evo are set at 512mb of RAM however my phone only has a total of of 385mb of ram. Is this typical?
That doesn't take into account the OS. Which as you know is loaded into ram on boot.
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thedudejdog said:
That doesn't take into account the OS. Which as you know is loaded into ram on boot.
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Click to expand...
Click to collapse
was not aware of that, thank you for the quick response. doesn't really matter haven't run into any memory problems just thought it was weird. Thanks again

Dual Boot

This should really start being looked into by the devs. It would be AMAZING to have it on the Epic4G. Easier said than done. But we got some great devs and I think they can pull it off!!. Please devs. We need this!
Sent from my SPH-D700 using XDA App
What do you mean by dual boot?
http://epiccm.blogspot.com/2012/01/boot-el30-stock-from-sdcard.html
The temporary EL30 boot from sdcard is a method of "dual boot" which has been useful for people to update PRL and calibrate sensors. This old version is problematic in that 3G and 4G data is broken. We know how to fix it, but it would take a few hours of work and there hasn't been demand for it.
Any type of dual boot would boot from the sdcard. The slow sdcard. Not a great user experience.
LOL...I got a quad boot on my phone. If I boot right into CWM I have nandroids of 4 ROMs to choose from to restore. Takes less than 10 minutes to restore one and then there is no issue of running from a slow sd card since we don't have enough internal memory to make real dual boot work.
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wtogami said:
What do you mean by dual boot?
http://epiccm.blogspot.com/2012/01/boot-el30-stock-from-sdcard.html
The temporary EL30 boot from sdcard is a method of "dual boot" which has been useful for people to update PRL and calibrate sensors. This old version is problematic in that 3G and 4G data is broken. We know how to fix it, but it would take a few hours of work and there hasn't been demand for it.
Any type of dual boot would boot from the sdcard. The slow sdcard. Not a great user experience.
Click to expand...
Click to collapse
NOT DUALBOOTING
kennyglass123 said:
LOL...I got a quad boot on my phone. If I boot right into CWM I have nandroids of 4 ROMs to choose from to restore. Takes less than 10 minutes to restore one and then there is no issue of running from a slow sd card since we don't have enough internal memory to make real dual boot work.
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
Haha no Dual booting is when you turn on your phone and have the chance to boot into either windows or android. like windows has.
Real dualbooting
XxLostSoulxX said:
NOT DUALBOOTING
Haha no Dual booting is when you turn on your phone and have the chance to boot into either windows or android. like windows has.
Real dualbooting
Click to expand...
Click to collapse
I know what real dual booting is....LOL. But not practical with our phones limited memory. With MTD and very limited apps it is probably possible but not practical leaving no room for any third padty apps.
Was just injecting a little humor..sheesh. ..tough crowd..l
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kennyglass123 said:
I know what real dual booting is....LOL. But not practical with our phones limited memory. With MTD and very limited apps it is probably possible but not practical leaving no room for any third padty apps.
Was just injecting a little humor..sheesh. ..tough crowd..l
Sent from my SAMSUNG-SGH-I717 using XDA
Click to expand...
Click to collapse
not trying to be tough lol just saying is all. but if an old windows mobile phone can why cant ours, the htc touch pro 2 did and has less everything than ours.
I got it xP. I think he is just a bit to serious ha
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joe_d08_17 said:
I got it xP. I think he is just a bit to serious ha
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Ha...been awhile since I was accused of that...lol.
Is it possible that other phone's ROMs are much smaller than ours? It can be done but would be a tight squeeze on MTD but next to impossible on BML.
Sent from my SAMSUNG-SGH-I717 using XDA
Nook color has this. Although I never compared the specs. One boots off SD card, thither off internal memory. Speed off SD is same as internal. But I don't think the epic could handle this as a full time option. Just my opinion. My NC dual boots cm7 and cm9.
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adamdelozier said:
Nook color has this. Although I never compared the specs. One boots off SD card, thither off internal memory. Speed off SD is same as internal. But I don't think the epic could handle this as a full time option. Just my opinion. My NC dual boots cm7 and cm9.
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
I've benchmarked our internals and they come out to about 218 mb/s read our sdcards are average about 15 mb/s read
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Android = 200mb
Nand = 500mb
Data+cache = ~300ish mb
If you dual boot you will have no space for apps
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marcusant said:
Android = 200mb
Nand = 500mb
Data+cache = ~300ish mb
If you dual boot you will have no space for apps
Sent from my SPH-D700 using Tapatalk 2
Click to expand...
Click to collapse
Where'd all that space come from? I thought we only had like 300 megs in both RAM and ROM?
Also my friends tp2 and hd2 dual booted very easily into android (infact I think the hd2 is the most developed for android phone after the g1 and nexus 1, and its not even native lololol) and ran extremely smooth (on the hd2...on the tp2 it was like a hero with a keyboard lol. Random sluggishness.)
But nah if the hd2 can handle it I know damn well our phones can handle it. The problem is, everything we can dual boot is closed source so that's why windows phones can dual boot android but not vice-versa (I mean, you could do it yourself but just can't distribute it).
Meego seems like a great choice for a dual boot though since its open source and amazing...
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A_Flying_Fox said:
Where'd all that space come from? I thought we only had like 300 megs in both RAM and ROM?
Also my friends tp2 and hd2 dual booted very easily into android (infact I think the hd2 is the most developed for android phone after the g1 and nexus 1, and its not even native lololol) and ran extremely smooth (on the hd2...on the tp2 it was like a hero with a keyboard lol. Random sluggishness.)
But nah if the hd2 can handle it I know damn well our phones can handle it. The problem is, everything we can dual boot is closed source so that's why windows phones can dual boot android but not vice-versa (I mean, you could do it yourself but just can't distribute it).
Meego seems like a great choice for a dual boot though since its open source and amazing...
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
This is still not possible. The HD2 had a lot more ROM.
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marcusant said:
This is still not possible. The HD2 had a lot more ROM.
Sent from my SPH-D700 using XDA
Click to expand...
Click to collapse
Whats funny is the HTC HD2 still runs ICS or can dual boot etc... and its 3 years old
I have had my head spun by this topic myself -- I've been doing a lot of searches and reading just about every result but I can't seem to find good general info on the subject. I've seen some loosely compiled info on dual booting CM9/CM7, and I've seen some info on the EL30 from sdcard mentioned before, but I had hoped to boot CM9/CleanGB as CleanGB is what I'm running stable and comfortable with now. I'd just like to be able to have stable and comfortable as a fallback for playing with ICS. I know running off the sd is supposed to be quite slow, I don't really know what to expect as to HOW slow, but the way I figured slow was an acceptable compromise for a stable fallback.
My bottom line has been that a lot of kernels seem to support this, yet it feels like there's very little info on doing it, and that just confuses me a skosh. Is CM9/CleanGB even possible due to kernel requirements?
-X
I used to do this on my HTC TouchPro2. It was nice having android on it. The only problem was battery died too quick. But it was a pretty easy thing to do.
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lilajrestnom said:
I used to do this on my HTC TouchPro2. It was nice having android on it. The only problem was battery died too quick. But it was a pretty easy thing to do.
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Click to expand...
Click to collapse
Obviously the Touch Pro was designed to run windows mobile only and more business like Blackberrry
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XxLostSoulxX said:
Obviously the Touch Pro was designed to run windows mobile only and more business like Blackberrry
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Click to expand...
Click to collapse
Ya I know. Coming from a T-mobile MyTouch3G Slide I hated the TP2 lol.
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XxLostSoulxX said:
Obviously the Touch Pro was designed to run windows mobile only and more business like Blackberrry
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Click to expand...
Click to collapse
What does pointing out the obvious have to do with what he said
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Android -> Jelly Bean

I was looking around and found the Google plans to release Jelly Bean (5.0) in November of this year! So my question is, will the Cyangen(Mod) developers make this available for our Epic 4g. And also what new features will it feature? There's a rumor we will have an official personal assistant in the OS.
-2348z Epic 4G-> CM9 Beta0
Give it some time
Don't be so impatient
We'll know eventually
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I am patient, just wanted to know if anyone had a leak
-2348z Epic 4G-> CM9 Beta0
Can you provide the site or doc you got this from
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2348z said:
I am patient, just wanted to know if anyone had a leak
-2348z Epic 4G-> CM9 Beta0
Click to expand...
Click to collapse
A Leak? Google hasn't even said anything publicly about it yet and your asking for a leak? lol. ICS barely handles on our phone, are phones have 360Mb of Ram after everything said and done but ICS requires 400Mb so were sliding along. Jelly Bean unless its less aggressive but doesn't require as much RAM as ICS, we wont be able to run it. Your talking about extremely new technology and software trying to handle the latest and greatest on older tech.
Put in terms of Trying to Run Win7 (PC) with only 256Mb of Ram, and 1.2GHz Single Core Processor Never going to happen lol.
Wouldnt you have upgraded to a new phone by November anyway? Maybe not but the majority of us will and i dont cyanogenmod would support a phone that would be nearly dead by the time of jelly bean. Our phones are lucky enough to run ICS.
Sent from my Galaxy Tab 10.1
I have 383MB of RAM. But I agree that ICS itself should be more than enough to hold everyone over till upgrade time.
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Zeinzu said:
I have 383MB of RAM. But I agree that ICS itself should be more than enough to hold everyone over till upgrade time.
Sent from my SPH-D700 using Tapatalk
Click to expand...
Click to collapse
if you go into TW task manager and look at ram it should say whatever amount your using and be exactly 359Mb im on Ginger Bread so im not exactly sure ICS is the same but how could you possibly have more? lol.
But if and ever Jelly Bean were to successfully be ported to this phone then it will hold up to its name be "EPIC"! The way i see it if the Samsung galaxy 3 or 5 can have ICS and run it most likely than this phone should handle more you'd think? it would be the only phone that would say it had 5 major OS Updates haha and kept alive even when considered old Tech.
ICS was just released...why would it be leaked? I don't think that kinda stuff gets leaked anyway.
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Flash cm9, go into manage apps, running, do the math for yourself.
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Zeinzu said:
Flash cm9, go into manage apps, running, do the math for yourself.
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Click to expand...
Click to collapse
Don't forget that the stock b0 cm9 kernel freed up an extra 36 mb of ram.
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ICS is barely chugging along on our phones. You would be sacrificing serious usability if the jelly bean was ported. ICS runs smooth, most of the time, but its clear that the epic is right on the edge.
Sent from my SPH-D700 using XDA
Jelly Bean and Cyanogenmod
I believe that once Jelly Bean gets dropped, if Cyanogen supports it there is a possibility we could get it. I had the original G1 running Cyanogen6 on it and that was long after the official updates stopped from Google/TMo. I mean if they can get Froyo on a device that stopped getting updates at Doughnut, I believe they can get some Jelly on a Gingerbread. This is just an opinion though. Either way I am fine with my ICS on my Epic.
2348z said:
I am patient, just wanted to know if anyone had a leak
I won't even bother reading what others have said about this statement. Your asking about a leak when you yourself stated this MAY be released in November. You sir, are an idiot.
-2348z Epic 4G-> CM9 Beta0
Click to expand...
Click to collapse
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b16flybye said:
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Click to expand...
Click to collapse
I believe he's asking for a leak of data.
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Frostacious said:
I believe he's asking for a leak of data.
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Click to expand...
Click to collapse
That's what I thought he meant too. As in leaked info about Jelly Bean in general.
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JBakey said:
Don't forget that the stock b0 cm9 kernel freed up an extra 36 mb of ram.
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Click to expand...
Click to collapse
If you wanna get technical that's the RAM left on the build. The device itself physically has 512MB of RAM doesn't it? The extra 36MB didn't magically appear out of thin air, it had to already physically be there to begin with.
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Zeinzu said:
The device itself physically has 512MB of RAM doesn't it?
Click to expand...
Click to collapse
That was my thought. Is there a place where I can see a breakdown of the full 512mb?
Reason I ask, is under menu > manage apps> All, it lists 184mb used and 493mb free, and unless my math has gone screwy, that adds to 677mb which is more than 512mb
Also, under menu > system settings> storage, under apps, it shows total of 676mb, with 180mb used.
What gives??? Is this all due to the file system conversion to MTD?
DCRocks said:
That was my thought. Is there a place where I can see a breakdown of the full 512mb?
Reason I ask, is under menu > manage apps> All, it lists 184mb used and 493mb free, and unless my math has gone screwy, that adds to 677mb which is more than 512mb
Also, under menu > system settings> storage, under apps, it shows total of 676mb, with 180mb used.
What gives??? Is this all due to the file system conversion to MTD?
Click to expand...
Click to collapse
I believe it that is storage space not RAM. Our phones are supposed to have 512 mb of ram. I am not 100 percent sure where you would find that actual break down though.
edit: the 676 megabytes under storage is the data partition. This is how much space you have to store apps on your internal storage. My guess is you would have to get some kind of ram manager in order to see the actual memory allocation.
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DCRocks said:
That was my thought. Is there a place where I can see a breakdown of the full 512mb?
Reason I ask, is under menu > manage apps> All, it lists 184mb used and 493mb free, and unless my math has gone screwy, that adds to 677mb which is more than 512mb
Also, under menu > system settings> storage, under apps, it shows total of 676mb, with 180mb used.
What gives??? Is this all due to the file system conversion to MTD?
Click to expand...
Click to collapse
Those two parts are both listing internal storage space.
MTD conversion resized the partitions so storage has ~677MB.
Back to RAM.
There is 512MB total. On stock Epic drivers and kernel configs, ~165MB is dedicated to system space(kernel/driver/phone os) leaving ~347MB to user space (app memory).
Our cm devs have found out how to free up 36MB from the system by merging Nexus S drivers and sacrificing 1080p video playback (kinda overkill on a 800x480 screen anyway)
And tweaking some jpeg lib for another 1.9MB.
So right now we have ~384MB available in ICS.
And its still possible (AFAIK) to free up another ~32MB with the move to 3.0.x kernel (further merging with Nexus S base).
I think the 400MB(user space) requirement is for reaching the intended performance for ICS multi tasking.
I might not be 100% correct though.
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AP2SD-EXT

Saw this over in the evo forums. Seems pretty cool, on ICS and JB roms it switches your internal storage with your external storage, so no need to partition your sdcard to get apps on there
EDIT: You still need an sd-ext to do this
EVO thread: http://forum.xda-developers.com/showthread.php?t=2123426
Script thread (props to @Amarullz): http://forum.xda-developers.com/showthread.php?t=1310309
Sent from my PG06100
Nice find :good: . I'm using something like this on my SGS3. Now have 32GB internel on my SGS3 . One thing I have noticed is that your Class of SD Card makes a substantial difference as to how the Mod performs.
It reads like you need an sd-ext so you would still need a partition.
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I read it as swapping internal with external. Huh. I'll read through the thread and see, but diablo over at the OG evo forums said that he had a 32gb and 1gb internal, and now he has 29 gb internal
You can do this for the s3 too, but its more specific and not generalized like this one
@prboy
So have you found that higher class = better performance? Or lower class = better or middle class (4/5) gives the best performance?
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CNexus said:
I read it as swapping internal with external. Huh. I'll read through the thread and see, but diablo over at the OG evo forums said that he had a 32gb and 1gb internal, and now he has 29 gb internal
You can do this for the s3 too, but its more specific and not generalized like this one
@prboy
So have you found that higher class = better performance? Or lower class = better or middle class (4/5) gives the best performance?
Sent from my PG06100
Click to expand...
Click to collapse
I just kept reading sd-ext over and over. and I thought he said a 32 gb ext lol
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strapped365 said:
I just kept reading sd-ext over and over. and I thought he said a 32 gb ext lol
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Click to expand...
Click to collapse
Yeah by that i thought he just meant sd-external...anyway, you're probably right :good:
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I asked him. Yes you need an sd-ext partition and he meant he had an 8gb sd-ext not 28gb
Yeah, I saw
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CNexus said:
Yeah, I saw
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Click to expand...
Click to collapse
Yeah just clarifying for everybody else
Any body test this on evo shift..? Kinda like it and wanna try it..
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OHH.
If you dont get what this does, look at the picture in @amarullz thread. So a2sd moves the apk itself to the sd....but this mod moves the apk AND data to the sd, so your entire data partition is stored on your sd
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