NexusHD2 Android Forum

@tytung

Google adding sdcard support in kitkat answers my above question?

Because sdcard dont erase without power supplied and nand does?


If not please point me in the right way, you or any knowledged person.

My HD2 drains too much.
Fresh installed new v3.3, no apps installed, wifi off, bt off, gps off, no data (no 3g), 2g service only checked. Very little use (1/2 little calls and 3/4 sms every day).
It drains like hell when 2g signal is low, too much to be normal, i think hd2 is searching for a better signal in a too little short time interval. I can't reach the evening with phone always off and 2 calls only.
What i can do, there is a solution?

Cant the tmouse larger ram be activated on the europe model using its hspl, radio on nativesd or is the 410 mb ram physical ram rather then nand?

I was thinking sd disk outcompetes the hd2 ram in performance and also a really cheap upgrade.

pirlano wrote:My HD2 drains too much.
Fresh installed new v3.3, no apps installed, wifi off, bt off, gps off, no data (no 3g), 2g service only checked. Very little use (1/2 little calls and 3/4 sms every day).
It drains like hell when 2g signal is low, too much to be normal, i think hd2 is searching for a better signal in a too little short time interval. I can't reach the evening with phone always off and 2 calls only.
What i can do, there is a solution?

You need to establish what is causing the battery drain. Yes, 2G can consume more power than 3G but probably there is something else going on. If you installed all the Google Apps, for example, one may be keeping the device awake.

Try using this like Wakelock Detector and Better Battery Stats to get more information.


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Any clod can have the facts, but having an opinion is an art.

Delibit wrote:Cant the tmouse larger ram be activated on the europe model using its hspl, radio on nativesd or is the 410 mb ram physical ram rather then nand?

I was thinking sd disk outcompetes the hd2 ram in performance and also a really cheap upgrade.

It is likely already activated if you have 410. The difference is used up by graphics drivers if I recall correctly.

SD probably will outperform the HD2 NAND since the device is old and the memory used in it was only equivalent to a Class 4 card.


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Any clod can have the facts, but having an opinion is an art.

NYLimited wrote:
You need to establish what is causing the battery drain. Yes, 2G can consume more power than 3G but probably there is something else going on. If you installed all the Google Apps, for example, one may be keeping the device awake.

Try using this like Wakelock Detector and Better Battery Stats to get more information.


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Any clod can have the facts, but having an opinion is an art.

If I'm not mistaken you're correct when it comes to write speed, the class 6 and 10 cards are faster, but I think the native nand is still faster when it comes to read speed, which makes it ideal for the system partition. At least that was my impression when I was experimenting with different installation types. It always seemed to boot up faster with system on the nand.

Odysseus wrote:If I'm not mistaken you're correct when it comes to write speed, the class 6 and 10 cards are faster, but I think the native nand is still faster when it comes to read speed, which makes it ideal for the system partition. At least that was my impression when I was experimenting with different installation types. It always seemed to boot up faster with system on the nand.

Unfortunately HTC has removed the technical specs of the HD2 from their web site already so I cannot lookup the numbers any longer. As best as I can recall the HD2s NAND chips operated at roughly Class 4 speed. I do not recall if there was a speed difference between the Samsung (KBY00U00VM) chips and the Hynix (H8BFS0WU0MCR).

Keep in mind that SD cards are often faster in read operations but NAND may be faster during writes if comparing to an SD of, say, Class 4 or so, which will yield an illusion of snappier response on occasion.

Also, placing /system in NAND and /data on the card gives the device two locations to read from instead of a single one, saving some calculations. It is a tough science trying to figure it all out and the ultimate answer is how it feels to the person using it.

I hope someone will be able to help me identify why the ROM becomes awfully slow after a while.

this has been an issue with me with older versions also (since ICS i guess)

currently here is my Installation:
HD2 EU, Radio 2.09
16GB Sandisk class 4 [Partition 1 fat32 primary 13GB default cluster], [Partition 2 ext4 primary 2GB default cluster]
ROM v3.2 13 October, Nand with DataOnEXT
black clk 1.5.x

programs installed: facebook, facebook Messenger, WhatsApp, IGO, Evernote, ES file Explorer and Nova Launcher.

after Installing the ROM Speed is good, but after a while I face freezings and slowness all over.

NYLimited wrote:
You need to establish what is causing the battery drain. Yes, 2G can consume more power than 3G but probably there is something else going on. If you installed all the Google Apps, for example, one may be keeping the device awake.

Try using this like Wakelock Detector and Better Battery Stats to get more information.

Fresh full installation only, no other apps, and no wakelock (phone is not "active" in battery stats), but when signal is low, drain is too much higher than older roms, it drains like if i play GTA with screen on.
Also Debug settings doesn't stick, after reboot they are resetted.

Wow! This looks really fast on my HD2 class 4 SD card. However I'm waiting for class 10 card, hope it improves speed more.