NexusHD2 Android Forum

Hy

I have run cyanogen 10 onhtc hd2 (android 4.2.2) , but I am the third sd, the first two are broken after using for a few months a native rom sd.

But often the phone locks the screen remains black while the keys light up and am forced to remove the battery and restart the phone so.

Can i resolve this issue?

I use Sandisk's sd class 10 (16 or 32 gb) on htc hd2 europen version

Thanks

Massimo wrote:Hy

I have run cyanogen 10 onhtc hd2 (android 4.2.2) , but I am the third sd, the first two are broken after using for a few months a native rom sd.

But often the phone locks the screen remains black while the keys light up and am forced to remove the battery and restart the phone so.

Can i resolve this issue?

I use Sandisk's sd class 10 (16 or 32 gb) on htc hd2 europen version

Thanks

Maybe you could try running DataOnEXT instead so the stress on the card is not so high..

Alternately, try a Samsung Class 6 card. You should be able to find the 32 GB for around US$20 - $25.

Thanks for reply ,

I have try to install using DataOnEXT but no installation start.
I have followed this tutorial http://www.youtube.com/watch?v=ePOH2wJD2kw

What is the difference with a samsung class 6 is better than sandisk?

Massimo wrote:I have try to install using DataOnEXT but no installation start.
I have followed this tutorial http://www.youtube.com/watch?v=ePOH2wJD2kw

That tutorial is for NativeSD as far as I can tell from a quick look.
DataOnEXT installs the ROM in NAND (main phone storage) and data, apps and cache folders on the SD Card.
Essentially, it splits the load between the card and the phone storage.
MSkip's tutorial is pretty old but it should give you a starting point if you want to see what is involved.

Please note, however, that any NAND based installation will wipe your device completely.
If you are also using Windows Mobile on it you can only have both (Windows and Android) with the NativeSD method.

Massimo wrote:What is the difference with a samsung class 6 is better than sandisk?

Samsung is good brand - not sure if I would say better or worse than Sandisk.

Sandisk, especially the very fast ones, seem to work in some HD2s and not in others. No good explanation for it but one of the symptoms is the card going off-line periodically. Sometimes a slightly slower card may work better for you.

My device is one that had issues with my 8GB Sandisk Ultra class 10. With it installed I was getting lockups and random reboots. Now I'm using a 16GB PNY class 10 and haven't had an issue in the month I've had it installed. I hope this helps.

Ciao

Samsung cards are better in random access (random read/write) which is the relevant speed factor

First one samsung plus 16 gb class 10 uhs-1

Second one is sandisk mobile ultra 16 gb class 10 uhs-1 (a pretty good one btw)

Encountered this behaviour with various cards the sandisk of a friend of mine was in cause of slow random access nearly unusable for dataonext...

Our phones are flying now with Samsung

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Odysseus wrote:My device is one that had issues with my 8GB Sandisk Ultra class 10. With it installed I was getting lockups and random reboots. Now I'm using a 16GB PNY class 10 and haven't had an issue in the month I've had it installed. I hope this helps.

FWIW, I have used only Sandisk cards, and my most recent 64G card has been running flawlessly since Sandisk first released it.

I realize you have good intentions, but I have found that generalizations, not based upon fact, normally do more harm than good, especially when those missives get quoted as the gospel, further down the road, ad infinitum.

MarkAtHome wrote:FWIW, I have used only Sandisk cards, and my most recent 64G card has been running flawlessly since Sandisk first released it.

I realize you have good intentions, but I have found that generalizations, not based upon fact, normally do more harm than good, especially when those missives get quoted as the gospel, further down the road, ad infinitum.

Look again at my post. I didn't make any generalizations. I made a specific observation based upon my own personal experience.

Prior to my purchasing my 8GB Sandisk Ultra Class10 card I was using a generic 2GB no name brand class4 card that was too small for a data-on-ext install. I got the Sandisk Ultra specifically because it was the largest fastest card on sale at Best Buy the weekend I went in to purchase. As I stated, I had nothing but problems with it. I experienced several random lockups and reboots shortly after I began using it and they continued up until the time I removed it. In the few weeks that I used it, the longest my phone was able to go without locking up or rebooting itself was a little under 24hrs. Those issues went away as soon as I went back to a full nand install.

I had even began thinking that my issues were common with all data-on-ext installs. It was only after reading on several forums that SOME HD2 owners had experienced similar issues with SOME Sandisk Cards to mine, that I decided to try again and switched to another brand.

I've been using my current PNY 16GB Class10 SD card now for over 6 weeks and haven't experienced a single random lockup or reboot. In fact, the only time I've rebooted is when I've updated my ROM and a couple of other times when apps I installed seemed to not be working correctly. Now if this was your device, and your personal experience, wouldn't you be making similar comments as mine? Again, these aren't generalizations, they're observations based on personal experience.

Who knows, maybe I just got one of a bad batch of cards? I'm not about to buy another to find out. It's like any other commodity product, if you have a bad experience with any item from a particular brand you're going to be less likely to purchase from them again. Example, my brother owns a Subaru that he swears by. I had one 25 years ago that spent more time in the shop than on the road. It blew 2 head gaskets in a span of three months and cost me more than it was worth in repairs. I've never bought another and won't again, no matter how much my brother raves about his. That's how I feel about Sandisk.

You may have experienced excellent results and have never had any problems, however, that doesn't change my experience and my OPINION derived from it, because that's exactly what it is my personal opinion base upon my personal observations. Take it for what it's worth.

Ciao

MarkAtHome wrote:FWIW, I have used only Sandisk cards, and my most recent 64G card has been running flawlessly since Sandisk first released it.

I realize you have good intentions, but I have found that generalizations, not based upon fact, normally do more harm than good, especially when those missives get quoted as the gospel, further down the road, ad infinitum.

Fyi my phone was running ok with the sandisk card i posted the benchmark but now it's flying you can be lucky and it's running ok but the differences are huge. So you can also end up with a totally unusable card with the samsung cards there were nearly no difference. All better than the best sandisk...
I'm curious about your androbench benchmark?! Could you post it? (And which model: mobile ultra/extreme pro?)

All the best

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Odysseus wrote:My device is one that had issues with my 8GB Sandisk Ultra class 10. With it installed I was getting lockups and random reboots. Now I'm using a 16GB PNY class 10 and haven't had an issue in the month I've had it installed. I hope this helps.

MarkAtHome wrote:FWIW, I have used only Sandisk cards, and my most recent 64G card has been running flawlessly since Sandisk first released it.

I realize you have good intentions, but I have found that generalizations, not based upon fact, normally do more harm than good, especially when those missives get quoted as the gospel, further down the road, ad infinitum.

Odysseus wrote:Look again at my post. I didn't make any generalizations. I made a specific observation based upon my own personal experience.

You are correct. You did not make a generalization. My bad.

Odysseus wrote:Prior to my purchasing my 8GB Sandisk Ultra Class10 card I was using a generic 2GB no name brand class4 card that was too small for a data-on-ext install. I got the Sandisk Ultra specifically because it was the largest fastest card on sale at Best Buy the weekend I went in to purchase. As I stated, I had nothing but problems with it. I experienced several random lockups and reboots shortly after I began using it and they continued up until the time I removed it. In the few weeks that I used it, the longest my phone was able to go without locking up or rebooting itself was a little under 24hrs. Those issues went away as soon as I went back to a full nand install.

I realize that no one wants to hear this, but in my many decades of troubleshooting, the first place I would point to is operator error, or a lack of sufficient troubleshooting skills by those having such issues (I am not including you). With sufficient resources, though, misbehaving cards can be made to work just fine. For example, simply moving the first partition a segment or two. I have also found that making use of different partitioning programs, formatting programs, etc., on different OSes, often provides different outcomes and can effect how a card performs.

Odysseus wrote:I had even began thinking that my issues were common with all data-on-ext installs. It was only after reading on several forums that SOME HD2 owners had experienced similar issues with SOME Sandisk Cards to mine, that I decided to try again and switched to another brand.

I would call that more of a hand full, rather than SOME, when considering the millions of cards sold.

Odysseus wrote:I've been using my current PNY 16GB Class10 SD card now for over 6 weeks and haven't experienced a single random lockup or reboot. In fact, the only time I've rebooted is when I've updated my ROM and a couple of other times when apps I installed seemed to not be working correctly. Now if this was your device, and your personal experience, wouldn't you be making similar comments as mine?

No. I try not to make sweeping statements, or I would be forced to fire myself!

Odysseus wrote:Who knows, maybe I just got one of a bad batch of cards? I'm not about to buy another to find out. It's like any other commodity product, if you have a bad experience with any item from a particular brand you're going to be less likely to purchase from them again. Example, my brother owns a Subaru that he swears by. I had one 25 years ago that spent more time in the shop than on the road. It blew 2 head gaskets in a span of three months and cost me more than it was worth in repairs. I've never bought another and won't again, no matter how much my brother raves about his. That's how I feel about Sandisk.

What you are doing, though, is swearing off cards made by Sandisk, not the model you specifically had an issue with.

It is not unlike finding a terrific Pioneer audio receiver and state that Pioneer makes great stuff (which it doesn't, but that's for another place & time). It made one single model that was good; nothing else could be ascertained by that experience.