yashsingh1/xdaforums huggingface dataset:
[Nook Color Accessories] Imbroglio:
One of the main reasons I got a NC was for being able to have on hand lots of useful books for TEOTWAWKI or SHTF and also was concerned about recharging it after services are interrupted or go down for long periods of time.

Here is the basic setup that will also be used to charge AA/AAA and 123 batteries:

Sunlinq 12W folding Solar Panel

http://www.globalsolar.com/en/products/portable-solar-chargers/commercial/12-watt.html

This actually puts out 15 volts and close to 1 amp and has a car cigarette lighter type outlet adapter.

Champtek USB Car Charger Kit

http://champtekinc.com/champtek/CC-210.html

This is rated at 5v 2.1 amps output.

I have only tested this once and it appears that there is enough current being generated to have the N on the plug glow orange and the NC indicate it is being charged. Going to have to do a test to compare charging time compared to regular house current.

I think I will eventually add a 4000 mah external battery since that can be used for more than just backup power for the NC.
[Nook Color Accessories] ezakuroy:
Looking forward to seeing the results! How large/heavy is that solar panel?
[Nook Color Accessories] Imbroglio:
The specs on the sunlinq 12W are:

folded: 9" x 5" x .7"

open: 29" x 17.5" x .03"

weight: .7 lb

I bought it about 3 years ago for around $150. There is a 25W version, but it is much bigger and cost around $350.

One of the backpacking magazine writers tested out a unit during a trip to Alaska and it suffered no ill effects of freezing, thawing, and rain while strapped to top of a tent.
[Nook Color Accessories] Dj-Gutz:
I was also thinking about solar powering

but in the more cheap side of things :)

I'm actually installing this in a car ( rear deck probably )

so I don't care about weight and even size much

What do you think about this ?

http://www.adafruit.com/blog/2010/0...boost-a-solar-power-charger-for-your-gadgets/

Could this work? Maybe 2 panels connected in parallel?

I live in Israel and we get 10+ good sun hours a day here
[Nook Color Accessories] woot1524:
Cool stuff. I also use my nook while backpacking/geo-caching. I live in michigan though, and even when we have sun, it's not that much for a solar charger. I'm looking into getting one of the fuel cell chargers, like the SiGNa's mobile-H2. here's a write up about it, http://arstechnica.com/science/news/2011/03/just-add-water-to-recharge-batteries.ars .

They said they're going to launch with a 5watt/hr one first. which is not really enough for the nook color. I'm hopeful though. With the success of the ipad(lol I know dirty word around these parts) and android tabs. I would expect a larger, more like 15 or 20watt/hr, device to be released. Best part is, any water will work even the yellow kind.

Hydrogen fuel cell tech is the real future of energy. We just need to find the right catalyst. (also china needs to stop hoarding rare earth metals) A 10% hydrogen recovery rate and non reusable catalysts, just won't cut it.
[Nook Color Accessories] Imbroglio:
I am not an electrical engineer and only took a basic electronics class way back in high school (I have forgot most of it) so some of the things I say may not be completely accurate.

The thing with solar panels is that you have to match the panel output to the device you want to charge. There are lots of nice looking small solar chargers on the market, but if you read the small print the charge times can become ridiculously long.

I have seen small cheap china made solar battery chargers that state 3v at 200ma (if this is even accurate). This would be fine for directly running a small portable radio, but for charging 2 AA batteries it would take a very long time. The new generation of low self-discharge nickel-metal hydride AA batteries have capacities of up to 2500 mah. Using this cheap charger would take over 12 hours for just 2 these batteries.

I am estimating that the sunlinq (rated output 800ma, but I have measured close to 1a) should charge a NC (4000 mah battery) in about 5 hours.

The device in the article you mentioned I think could only be used to trickle charge a NC but only to about 25% capacity.

It would be great if someone with more electronics knowledge could add his opinions here.
[Nook Color Accessories] toolong:
Cheap solar power for my phone

So actually I figured out how to charge my vibrant with solar power on the cheap. I think solar cells with integrated batteries are a waste since the device being charged already has a battery, so why waste money/current?

The solar panel cost $25. I thought the specs were too good to be true, but solar panels are better than they used to be. The panel turned out to be exactly as advertised.

Assuming the Nook can charge with 400-700mA of current, this should work for the nook too: http://taras-log.blogspot.com/2011/05/cheap-solar-power-for-my-phone.html

These panels are about the size of a small tablet, apparently one can also cut them down to size. I hack that I want to see is where someone replaces the tablet backcover with a solar panel. Imagine a nook that never has to charge while outside :). I would love to have my Nook Simple Touch modified this way, but I'm afraid that's beyond my machining abilities :(
[Nook Color Accessories] Dj-Gutz:
My nook will be in deep sleep as long as the car not running ( I drive about 0.5-1 hour a day , maybe more on weekends but it shouldn't matter much )

And when the car is running it will be charging via 2A charger

What I'm hoping is to eliminate the need for the charger when I can ( it will be left plugged in for shady days etc of course )

So it doesn't have to charge it @ full current , 5 hours is probably perfect...

But it's pricey for me..

I actually looked at that solar panel before , good to know that it's as described , Ill defiantly consider it so thanks :)

What happens when the battery is full and it's connected? Does it drain it?

Looks like the setup in the link I posted earlier got some kind of circuit to keep it from draining the battery - Or does it only happen because of the charger battery? ( seems so electricity wise but I don't have any experience with solar panels and I don't know if they can draw power as well )

Also , can I hook 2 of these in parallel to achieve more current?

Thanks ( Sorry for "taking over" this thread Imbroglio , Let me know if you want me to open a separate thread for my setup :) )

Edit :

I just saw the "update" on the link you posted , Looks like it's draining the battery in the shade

I'll be following his thread to see if there is any progress on this issue

Quick link : http://xdaforums.com/showthread.php?p=15413618#post15413618

If it doesn't resolve using software maybe we can just see how to incorporate the circuit from the setup I posted with this panel ( My guess it shouldn't be hard )
[Nook Color Accessories] ace7196:
I'm in the process of making a solar panel for my gadgets (not enough for NC yet, but for my G1, camera, etc, it does the trick). You need some diodes to ensure the current doesn't go the other way.

Also, if you want some regulation of voltage and power to the device (in case you are doing it all on your own with panels off ebay, etc), you should get a voltage regulator and toss some resistors in their for the right current.
[Nook Color Accessories] Dj-Gutz:
I found this tool in android modaco forums :

http://android.modaco.com/topic/333406-usb-charging-commander/

github : https://github.com/t0mm13b/USBChargeCommander

On my HD2 CM7 it doesn't work , please check it on the NC CM7 if you can

I don't have my nook yet

If it works it should take care of that issue

If not , maybe we can go through the source and make it work on the nook

*Side Note : on CM7 - the charging animation should still be showing , but spare parts should say on the battery info discharging
[Nook Color Accessories] toolong:
So as far as i can tell the diode that the cell comes with is sufficient to prevent drawing current from the phone. Problem is the circuitry in the phone is stupid and doesn't shut off when it sees insufficient current. I suspect that since the phone thinks it's charging, it is turning on extra circuitry which itself consumes power. Thus the power drain.

Solar cell provides a stable 5V whether it's providing 0 or 600mA, so you don't need a voltage regulator... And you can't use a voltage-based regulator to build a circuit to shut off charging when the current gets too low.

I don't see why you wouldn't be able to hook these up in parallel. Should work fine.

I looked at the source code for the Vibrant battery driver. It can certainly turn off charging in software. Just need a slight kernel mod to expose that via /sys. Looks like zte blade already does it. I dont see why the nook can't do the same. I don't know if the Nook can report the current level.
[Nook Color Accessories] Dj-Gutz:
On the xda thread the guy says he can see the current in /sys/devices/platform/jupiter-battery/power_supply/battery/batt_chg_current

On my hd2 this is the path for example /sys/devices/platform/htc_battery/power_supply/battery/batt_current

so just look for similar path names

can you check this on your nook?

you can use root explorer , just long click on the file and open in text editor

Edit :

I actually noticed I'm not getting the charging current on the HD2 , but the current the device uses in general which I don't think can determine whether it should stop the charging based on that value alone

any thoughts?
[Nook Color Accessories] Imbroglio:
I finally got a chance to test everything out.

The first test was yesterday with the NC at 72%. Time was 6 pm pst. No overcast sun was at about 40-45 degrees on the horizon. Charging indicator was on and I let it sit for 20 minutes and when I brought the NC out of sleep mode, it was responding erratically. Battery Spy would lock up completely. Everything was fine after reboot, but no increase in battery %. The same thing happened after allowing another 10 minutes of charge time. My multi-meter is not working so I could not get a reading of how much the solar panel was putting out. My guess is that the problem was due panel being used too late in the day and the car adapter wanting to put out 2.1 amps made for an unhappy NC.

Today I tried out the setup at 1:00 pm pst. No overcast sun directly overhead. Charging indicator was on and Battery Spy or the NC did not exhibit the same problems as yesterday. Unfortunately, I didn't have enough time to let it sit and charge and was just testing the NC while it was plugged in. It appears that the car charger/NC combination has to be used during the sun's peak hours, probably from 11-4 pm.

More testing is needed. If the problems persist, I may have to change to a 1 amp car charger or resort to charging an external battery.
[Nook Color Accessories] chisleu:
Why not use a solar charger with an integrated battery?
[Nook Color Accessories] ace7196:
Got some free time...

So, I finally got some time today to wire mine up all proper-like. A few things to note (so I do not get 1000's of "you're an idiot/should have done it this way/etc").

I did not want to carry any more extra stuff, so external battery (maybe later)

This will mostly be used for my cell phone/camera/etc, so 5V/.5A was the goal for output

I'm going to try and find a cheap case today to put it all in

This will not charge an NC while on. Only off, and at a very slow rate. See second comment.

To make work well with the NC, just add more in parallel/get a larger panel.

Anywho, I bought 2x solar panels from ebay (each at 300 mA, 6V). Tossed them into parallel (for 6V, 600 mA), then dug out some resistors and got a few LM317T voltage regulators. Since most devices have (or hopefully have) a circuit that cuts off at a certain voltage, I needed to control the output voltage to ensure I would have a charging device regardless of brightness (The panels ended up putting over 7V out).

The LM tends to have a volt or so drop through it, so I targeted 6V out (using this).

Soldered some stuff, wired it together, testing it without load with a multimeter, and finally plugged in the NC (after testing it with my G1).

I know you can't see **** with the pictures (the N glowing orange or the charging lightning bolt, but it was there).

Woohoo!
[Nook Color Accessories] Imbroglio:
Very cool setup. It looks like those panels are about the right size to attach to a rigid backing and onto the side of a notebook case.

I came across a video on youtube where a guy is reviewing an solar charger with battery setup called PowerMonkey eXplorer.

https://powertraveller.com/iwantsome/primatepower/powermonkey-explorer/

Much of the company's product line is meant to be used outdoors and exposed to the elements. The eXplorer has a 2200mah battery and the solar panel outputs 200ma so you are looking at around 11 hours in direct sunlight. Given that the NC has a 4000mah battery it would only give about a 50% charge.

The PowerMonkey eXtreme looks alot more suitable for the NC.

https://powertraveller.com/iwantsome/primatepower/powermonkeyextreme/

9000mah battery and 2.1 amp output! The drawback is that it appears the solar panel is just a bit more larger than with the eXplorer unit. If it puts our say 400ma it is still going to take around 24 hours of direct sunlight to get a full recharge.

I am still going to stick with what I have right now though and maybe look into getting an external battery to charge instead of trying to run the solar panel directly to the NC.
[Wildfire General] Hooda_mask:
Hey Can Any One Help Me To Find Karnel For The Original RUU (Froyo) (RUU_Buzz_Froyo_HTC_ARA_2.37.415.1_Radio_13.55.55.24H_3.35.20.10_release_166943_signed) CUZ I Wanna to Overclock It?​

:(
[Wildfire General] wzearsdcx:
Maybe nfinity MC4 from johnseen99? I'm using with modaco based on stock rom.
[HD2 General] Mckilla:
What happens when you send a hacked phone to htc for repair? What can and will they do?
[HD2 General] enjoy87:
I think they will back hd2 to you, so before you send it to them....

You must first back the SPL to original,

Here is video which help me when i have the same problem.. It is so easy :)

VIDEO: youtube.com/watch?v=Wc89Gh0QpIY
[HD2 General] samsamuel:
They will also charge you cost of returning it to you.
[HD2 General] ubejd:
i hope they dont find that...
[HTC EVO 3D] eugene373:
Thanks goes to #TeamWin for Temp Root

This is For Windows only, if you wish to make it work for linux or mac help your self...

Remember, This is still a Temp Root & any Changes made will be Rest back to stock on a Reboot

It's stable & works 100%

I Personally have not lost Root with this new Method

Q. I thought RW was Fixed?

A. Caused by Deleting an apk / file that was already deleted. Journaling shows it still there!

Keep Track of what you delete, as trying to delete something off system that you alread di hangs the /system into RO state.

Before Using!!​

HTC Sync Must be Turned OFF

Put the Phone into Charge Mode only ( Not Disk Drive )

USB Debugging Must be Turned on

What's Fixed:

Revamped due to new Method:

~ Superuser Apps now Function

~ :) If you Lose Root, all you have to do is Open terminal & type SU then type fixit! > No More Rebooting & running the exploit again for R/W on system to get Root back in place :)

~ Fixed R/O Bug!!

~ R/W is now Forced

~ /system is fully editable now! until reboot that is.

~ Busybox is installed to /vendor/bin

~ hex Edited libext4

~ hex edited libfuse.so

~~ This is the Last Update due to it working & Stable ~~

Download for RW HTC Sensation 4G:

````````````````````````````````````````````````````````````````````````````````````````````

Download for RW HTC Evo 3D:

````````````````````````````````````````````````````````````````````````````````````````````

Download for RW HTC Flyer 16GB/32GB:

````````````````````````````````````````````````````````````````````````````````````````````

Download for RW HTC Evo View:

Q. Is this permanent?

A. no, it's a temp root method..

Q. Will I lose SU Access at some point while running the OS?

A. You might, but open terminal & type fixit to get root back!.

Q. What about apps that need a reboot to use superuser?

A. Use Fast Reboot form the market for app that need a reboot..

Q. Can I push & remove items to system & will it work?

A. Yes, but all changes are reset on a reboot.​

Once Downloaded, Unzip & double click on the Run_ME_fre3vo_Root.bat File & Enjoy long lasting Root!

OLD NEWS:

Everyone knows that currently with any temp root, you still lose links to the SU Binary & Busybox links, it's just a matter of time before it happens!!

So after digging around somewhat I found an over sight that HTC might use later for system updates via /vendor/bin, who knows at this point though... Anyways, after amount of time the SU Binary along with busybox links if be in system/bin or /system/xbin gets deleted / removed..

Now, what I did was enable the $Path to /vendor/bin which is in the Sensation export PATH..

Any Calls made from this point either be SU or Busybox don't get deleted nor touched from any App requesting the SU Binary!! I've tested this with alot of apps & the Root sticks in place..

Other than Reboot, it might as well be a Perma-Temp-Root!!
[HTC EVO 3D] hockeyfamily737:
Downloading now!!! Can't wait to test it!

***EDIT***

Rooted perfectly, opened and closed Titanium Backup several times with no force closes or loss of su, Barnacle is perfect, Wireless tether is granted su but the kernel doesn't support it, screenshot gained su also but the screenshots were smeared colors. Drocap2 takes perfect screenies though. Gonna try a few more root apps before bed and play some more when I wake up to verify it lasts.
[HTC EVO 3D] ndraiden:
going to try this now!
[HTC EVO 3D] mattfmartin:
Ran the script and no root
[HTC EVO 3D] ndraiden:
script stays on

daemon started successfully :/
[HTC EVO 3D] Tiffany84:
Is there any chance u can edit the script or tell me how to edit it so it doesn't remove anything. Thanks.
[HTC EVO 3D] Shigster:
perfect works great!!! Managed to restore TB! Will try out wifi tethering right now and other su required apps! Thank you! <3
[HTC EVO 3D] nabbed:
I guess I don't understand.

How is removing anything from /system/app gonna stick?
[HTC EVO 3D] k2buckley:
This worked perfect for me. No problems with it. Wifi tether won't work for me, but barnacle tether works perfectly. Drocap2 is taking perfect screen shots for me as well, where as before the images would be all distorted and what not.
[HTC EVO 3D] megatron-g1:
Made some changes to the .bat since I don't necessarily want to disable all of that yet, but it works, this is the longest superuser has worked for me so far on the EVO 3D.
[HTC EVO 3D] Shigster:
How'd you get Barnacle to work?

EDIT:

Sorry my tablet doesn't read Ad-Hoc >_>
[HTC EVO 3D] urcboss07:
Is anybody able to root the E3D with this method? I tried twice and it failed both times. I will do again by restart my pc and E3D.
[HTC EVO 3D] hockeyfamily737:
Yeah....First try.
[HTC EVO 3D] hockeyfamily737:
It won't stick, but after you reboot you run the batch program again and the apps are removed again until your next reboot.
[HTC EVO 3D] urcboss07:
So, it will not stick as said, right?
[HTC EVO 3D] USSENTERNCC1701E:
a .bat file is just a text document that is executed in command prompt. If you are familiar with cmd just open the file in notepad, delete any commands you don't want executed, save.
[HTC EVO 3D] hockeyfamily737:
Not through a full reboot....no you will have to run the batch file again (even says so in the OP). However, the other root methods would crash periodically even without a reboot or would last but not give you access to the majority of your root apps. This is the closest yet to a feasible root solution.
[HTC EVO 3D] ndraiden:
mine doesnt get past daemon started successfully i have usb debugging on
[HTC EVO 3D] lowetax:
so if i downloaded and installed some apps that require root,

and i reboot, what happens to them ?

they will work after running the bat file again ?

or they will have to be installed again to work properly ?

thanks !

EDIT: i haven't done my due diligence (searching and reading)

but it's 5 am :) so i'll ask ...

what works for screen capture and for wireless tethering ?
[HTC EVO 3D] k2buckley:
They will work after running the .bat file again. You shouldn't need to uninstall and reinstall them. Super User may need to be uninstalled before running the .bat file again, if it gives you any force closes.
[HTC EVO 3D] lowetax:
i don't think S-OFF will be determined by whether you took the OTA or not.

this Perma-Temp Root is all set for you.

(i took the OTA and watched green hornet!)

and now i'm here rooted with OC to 1728
[HTC EVO 3D] GabrielSousa:
have this error

adb shell busybox --install -s /vendor/bin

--install: applet not found

anyone know why ?

but if i replace with the other busybox works,

why this version of busybox dont work with me ?
[HTC EVO 3D] samster86:
I just got the phone yesterday and i did the ota (1.13.651.7) and it temp-rooted fine.
[HTC EVO 3D] lowetax:
i turned notifications on in superuser, to test -

but i'm not getting that for setcpu ...

i turn superuser notifications off,

i hate that message showing up in drocap2 screen captures.
[HTC EVO 3D] freeza:
Root exploit supports latest OTA.

In other news, this script doesn't properly install busybox..
[HTC EVO 3D] wrxtc714:
Wifi tethering app now working

Thanks eugene

I know have the wifi tethering app working

I am tethered right now as I type this message

I would love to do a tutorial on getting it working but unfortunately I am tired of being hated on here.

I have a post on therootofallevo.com if anyone is interested in getting it working

So for everyone wondering IT DOES WORK and it is simple to get it working.
[HTC EVO 3D] vampirefo:
Yes this busybox wasn't compiled with install applet, just use another busybox.
[HTC EVO 3D] mikeyxda:
Please forgive the questions but I just like to know what these things are doing. Your previous solution (before you updated it today) was elegant and simple. This one looks to have a lot more "fluff" in it. Is most of that just for the overclocking? For example, what's with the removing of /vendor/bin/reboot? That file shouldn't be there unless you put it there. /vendor/bin should disappear on reboot. Also, why are you running /fre3vo twice: once from /data/local/tmp and again from /vendor/bin? It isn't going to work the second time you run it so the second run (from /vendor/bin) is just going to cause a delay and failure message.

Mike
[HTC EVO 3D] eugene373:
Reboot from busybox don't work, running it twice gets rid of lag it can get... If its to much fluff then use another as there using my work around.
[HTC EVO 3D] mikeyxda:
OK, thanks. I don't pretend to know as much as you do, so I'll admit not knowing what you mean by "running it twice gets rid of lag...". What lag? Any time you run fre3v0 after the first time (on the same boot), the exploit fails... so it really isn't running twice anyway. Is it?

Mike
[HTC EVO 3D] Tiffany84:
Hey Eugene, Thank u so much for all u have done for all of us. I know I greatly appreciate it. By chance, is there any way u could make this new script work for the people that haven't taken the ota? If not I understand. You've done enough already but was just wondering. I'll keep trying to do it myself. I just don't have even have the skill u do. Thanks again.
[HTC EVO 3D] USSENTERNCC1701E:
Just take the OTA, it's quick painless and actually fixes a few issues.