Samsung galaxy player 5.0 (Few random questions)

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Hi all,

I was looking into overclocking and underclocking the hummingbird processor withing my galaxy player 5.0
The overclocking is obviously for fun (I know the risks to the CPU and battery), the uderclocking is more so for power management.
I so far have not been able to go past the 1 GHz on the stock kernel.
Has anyone else tried this on stock/custom kernel and gotten any descent results?
I'm intrested in your expierences.

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I'd upload the 5.0 compatible kernel and ROM into my device to use it and try it out; I found it on this sight, but I have been stuck on attempting to backup my current Kernel and ROM, as I do not want to loose it.
(I'm trying to do it "manually" with a program that was meant for something totally different, its interesting on the parts of data I could dump, but nothing is usable).

But aside from that, I have been trying different things with just the root on stock kernel and ROM, and I have found a few things that were fun to play with like the droid wall and an SD speed up...

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honestly I do not see anything else I need/can use the root for right now...
An I missing something? Is the android that open...?!
(This is coming from someone who worked and worked to unlock an iPod touch and turned it into an iPhone and partially into a pocket PC)

I remember the kernels name: Entrophies Kernel (idk how to spell it)
(Its on this forms sight in a different category somewhere)
-I'd use it, but first I'm putting back the stock charging and battery management, I personally do not like the settings he has, Li-Ion Polymer batteries like a complete charge, and a steady charge with a taper at the end...

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Any thoughts and experiences on anything I had not asked about is also welcome.
Everywhere I look for information about this device, I keep finding random one posts with questions and never any answers.
Also, people seem to not know about this device, and also not know how to modify and back its data up, including me with my failed atempts... o_o

Ultimately, if I can figure enough out about this device, because everything I have found so far is scattered about online, I'd like to make a post and dedicate it to the galaxy 5 player eventually, with up-to-date (or as close as possible) info on many things. Because thats the biggest problem I see, nothings ever centralized.

If you have root then This should work on your 5.0 player. I just installed it (stock) to try after seeing your post and i already have my 5.0 overclocked to 1.1ghz

Tegrak Overclock is a great utility to over and under clock your CPU.

[root]How to back up your current kernel U.S 5.0 YP-G70

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1. Download MDump Partition dumper v0.02: link in signature!
2. Open MDump on your device and select "mmcblk0p11"
3. Rename the file: mmcblk0p11.mdump -> zImage
4. Touch "Start Dump"
5. Move the file to a linux machine and put it in a tar ball. (example command: tar -H ustar -c zImage > kernel.tar)
6. You now have a backup of your stock kernel which you can reflash using odin! (kernel.tar)

Update: I just noticed that you wanted the ROM too, it's mmcblk0p13. You can just dump that as well; rename it "factoryfs.rfs" and include it in the tar ball.

I plan on eventually adding support for clocking at 1.2 GHz and voltage control - I've just been busy with some issues with my I777 kernel (SoDs... ) and busy with real life in general.

I won't be just grabbing rumirand's patches as his use a slightly different approach than the netarchy-style code I prefer.

wow thanks everyone for the fast replies, I'm replying to each post in order, I added quotes to show which ones I am replying to.

Originally Posted by murph5525

If you have root then This should work on your 5.0 player. I just installed it (stock) to try after seeing your post and i already have my 5.0 overclocked to 1.1ghz

Thanks for the link, I added the app to my device, and overjoyed, I clicked on the 1.3 GHz setting and applied it!
I do not see much of a difference as my device never lagged, if that, before.
I tried a few benchmark utilities, and it seems to surpass almost all the single core CPU phones I looked at...

Originally Posted by dunca123

Tegrak Overclock is a great utility to over and under clock your CPU.

I was playing with the underclocking features, and my already 2-2.5 day battery looks like it will last another day...lol

Originally Posted by Meticulus

1. Download MDump Partition dumper v0.02: link in signature!
2. Open MDump on your device and select "mmcblk0p11"
3. Rename the file: mmcblk0p11.mdump -> zImage
4. Touch "Start Dump"
5. Move the file to a linux machine and put it in a tar ball. (example command: tar -H ustar -c zImage > kernel.tar)
6. You now have a backup of your stock kernel which you can reflash using odin! (kernel.tar)

I was not expecting this... Thank you very much, you just saved me a lot of trouble!
I'm trying this in a few days, I've got a couple tests to study for this week...

Originally Posted by Entropy512

I plan on eventually adding support for clocking at 1.2 GHz and voltage control - I've just been busy with some issues with my I777 kernel (SoDs... ) and busy with real life in general.

I won't be just grabbing rumirand's patches as his use a slightly different approach than the netarchy-style code I prefer.

I really like your kernel, you have done a nice job with it!
I was just wondering if you are keeping a single serries of the kernel or one with the modified power management, and one without?
Reason asking, is that I'm an EE, and I know a few people who work with battery management, and they all tell me the Li-Ion Polymer batteries like to be fully charged. I'm just curious as to your approach/reason behind stopping the charge just short of the top?
I like your selections for the custom charging with the kernel for quicker charge times... when I eventually get your kernel onto my device, I'm going to see if I can change settings while its installed, kinda like a power charge for when needed, and a regular charge for over night for less stress...

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idk, I'm new to android, I've been stuck in i-Devices lingo for a long time and I'm slowly figuring this android stuff out...

So far, the only real thing I actually needed root for is overclocking and underclocking, droidwall, and tor... I like how open the system is (aside from the kernel/boxroom seeming to be locked when my friend tried a program called adb on it the other day).

Just curious, anything fun I can do with a custom kernel/rom? the only thing I see it can do so far from searching a few links is themes? idk, i need to look into it more...lol

I came across running ubuntu linux on the device through a vnc, even though its installed on the device... I was thinking of trying that if it looks like its ok...lol

I'm just a bit excited, I have this thing that can do so much, but idk what to do with it other than using it as a free wifi phone so far...lol

Originally Posted by zBusterCB87

I really like your kernel, you have done a nice job with it!
I was just wondering if you are keeping a single serries of the kernel or one with the modified power management, and one without?
Reason asking, is that I'm an EE, and I know a few people who work with battery management, and they all tell me the Li-Ion Polymer batteries like to be fully charged. I'm just curious as to your approach/reason behind stopping the charge just short of the top?
I like your selections for the custom charging with the kernel for quicker charge times... when I eventually get your kernel onto my device, I'm going to see if I can change settings while its installed, kinda like a power charge for when needed, and a regular charge for over night for less stress...

I'm an EE myself. That's odd - all information I've ever seen says that Li-Ion and Li-Po batteries do NOT like to be fully "topped off" or "trickle charged".

I'll try to dig up my sources later, but, from memory:
Overcharging them can result in metallic lithium plating out, which leads to permanent capacity loss. This is why all Li-Ion chargers stop charging once current drops below a certain rate in the constant-voltage phase. In the case of almost every Samsung I've ever used, CPU/power usage counts against the charge current limit - so I'm REALLY paranoid about the charger terminating properly, which is why I make it cut off earlier, as a way of offsetting some of the stress on the battery that the charging rate bump creates.

Also, Li-Ion batteries stored at maximum charge will lose capacity far faster than ones stored at around 50% charge. (This is why almost all new devices have batteries only 50% charged or so.)

I may eventually add a feature to disable the increased charging rate at runtime, however, in the case of the Galaxy Player:
It has a 2500 mAh battery, so 800 mA is actually still less than C/3 charge rate for the battery, whereas on most Galaxy S phones, they charge at 600 mA for an (approximately) 1650 mAh battery, making charge rate slightly more than C/3.

I also reduce charge rate below stock near the top - the technique is inspired by this: http://www.engadget.com/2011/02/20/a...s-improved-ch/

idk, I'm new to android, I've been stuck in i-Devices lingo for a long time and I'm slowly figuring this android stuff out...

So far, the only real thing I actually needed root for is overclocking and underclocking, droidwall, and tor... I like how open the system is (aside from the kernel/boxroom seeming to be locked when my friend tried a program called adb on it the other day).

Just curious, anything fun I can do with a custom kernel/rom? the only thing I see it can do so far from searching a few links is themes? idk, i need to look into it more...lol

I came across running ubuntu linux on the device through a vnc, even though its installed on the device... I was thinking of trying that if it looks like its ok...lol

I'm just a bit excited, I have this thing that can do so much, but idk what to do with it other than using it as a free wifi phone so far...lol

Well, on many Android devices, root is needed to kill carrier bloatware. It happens that wifi-only non-carrier-branded devices tend to be less mangled and require less debloating. (Often none...) I've frequently run stock system firmware with custom kernels on wifi-only devices for long periods of time - but carrier-mangled devices almost always need an immediate debloat.