[Q] has anyone tried to write a new bootloader - EVO 4G Q&A, Help & Troubleshooting

Has anybody ever tried to make a new bootloader for EVO I mean its a bootloader just rewrite hboot just kill all security and give it a nice GUI
I know the bootloader starts up the hw and loads the img
Kinda like BIOS and bootloader but then it hands off that to the kernel I know Linux plays nicely with many diffrent bootloaders so why not
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S-ON, with S-ON you can't write anything to the system. It's as if your BIOS was password protected.

I mean after s off to kill this whole s on s off circle
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Omgadroid said:
I mean after s off to kill this whole s on s off circle
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I don't understand the question. Which circle? HTC turning security back on? I know there are differences between the types of S off... Radio, pvt, sim unlock.
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They sed they would but I have seen no info about them doing it for the evo
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I'm not following this logic either. Why rewrite the bootloader to remove security, when you would need to be S-OFF in the first place to install said bootloader? Once you're S-OFF, you've got a bootloader that does exactly what you want it to. There's not really anything to improve at that point. Why do you need a "nice GUI" for a bootloader?

My guess is he's thinking he could circumvent the S-On by just using an alternative bootloader. It's like trying to write a new registry values without having admin rights, not gonna happen.

I completely agree
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I don't think any of you guys know anything about software development. lol. wow! Sadly, it can be hard to write code for a chip we don't have the designs to. *wow, wrong word, but oh well. i'm sleepy!* However, having that feature on at all times would greatly cause the security of the phones to be in jep. only should be done by experts or people that know what they are doing. not everyone needs root access. in fact, MOST people SHOULD NOT have root access because they are idiots and don't know **** about **** and will end up putting a virus on their phone.

Well I ment for those who use root and I know it wouldn't be simple to do but for those who are like myself(who think outside the box)
It was just a idea
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What is the idea though? What would some other bootloader do differently?

No security on nand might be able to optimize the flashing process make it so there's no need for clockwork or the other one I forgot its name and maybe make it smaller than hboot to free up some space for sed roms
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Related

What is nand unlock?

I'm new at this obviously, I want to learn ask of it though. Can someone help me out?
http://lmgtfy.com/?q=what+is+nand
With some reason, you can then determine that the NAND on the EVO comes locked, thus preventing modification.
I guess you obviously never heard of Google either.
Fail.
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Dhd latest firmware question.

Hi all,
From what I've read and partialy understand you can't root the stock Rom.
Now I thought ous it possible to some how downgrade it to a rootable firmware then flash custom rom..... But please bare in mind I'm new to all things Android. Lol
Thanks for your time.
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http://forum.xda-developers.com/showthread.php?t=905003
Shy shizzle I have 2.37 ...
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How long till a way is found do you think guys ? Fed up with bloatware and want to of lol only other way is call orange and claim its not holding charge ...
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Looking for the downgrade package to root my dhd from software # 2.43.661.1
Anyhelp please.
patience please, xda dev are working on it
DesireHD_90 said:
How long till a way is found do you think guys ? Fed up with bloatware and want to of lol only other way is call orange and claim its not holding charge ...
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The devs need to do two things : 1. to find a way to get the root privilege so 2. to turn off write-protection of the internal sd so flashing the CWM recovery image and custom roms is possible.
There used to be one or some kernel vulnerabilities to achieve these. They found some methods to get a root privilege and also forced the Linux kernel to load a kernel module to turn off write protection. Now these wouldn't work any more as the stock update fixed these security issues.
The scenario for iOS is the same too. IPad2 jailbreaking is nowhere to see either. It is a different issue, but the morale behind these is if the vendors don't support JB in iOS or rooting in Android , the future of JB or Rooting may be gloomy.
Though HTC announced its hboot unlocking, I still doubt if write-protection can be turned off. My next Android phone could be Nexus series, 'cos Google Phone was/is/will be always open, if Google doesn't change the policy.
ywliu
Thanks for the reply dude
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Why do you root?

Hello everyone,
I have a simple question that I have yet to come across a decent answer too.
What is the main or real reason people root there phone for.
Is it basically like jailbreaking the iPhone or are theredifferent reasons?
I've bought my EVO 4G about a month ago and have been waiting for a root for the gingerbread 2.3.3 update that came stock with my phone.
The reason I'm asking this is should I really be waiting for a root? In other words why am I waiting for a root?
I personally love the phone as it is and I have had no problems with it.
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I recommend not rooting if you are asking those questions. I'm not trying to be rude at all.
Root is the name of the admin account in the Linux and Unix operating systems. Think of not having root as running in protected mode.
If you accept the responsibility of maintaining your own security, and don't mind invalidating your warranty then it is for you.
I didn't decide to root until one of the OTA updates from sprint forced a trial video game down my throat that couldn't be uninstalled.
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Oh I forgot to add, if you are planning on rooting I highly recommend loading the ROM MIUI.
A forwarding, however, 4G has not been implemented yet. Not a downside for me though. I rarely used 4G. The 3G here is fast enough.
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I root due to the need to remove "everything" that "they" put in. If you do not understand you are one of "them"
Thank you for the reply I understand what root is as I run blackbuntu on my desktop.
I wanna know what makes it different. Why are so many people wanting root on the EVO?
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Some people do not like HTC Sense. Some of the Sense based custom rom's run smoother than the stock rom's.
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Because people want to truely have control of the content on their phone
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I understand that, but what I don't understand is why would people sell there phone and trade it in and all just because they don't have root.
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Trytohaxme said:
I understand that, but what I don't understand is why would people sell there phone and trade it in and all just because they don't have root.
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because not having root drains the battery faster because of the Sprint Bloatware. Also having root lets you control you phone and do what you please with it like flashing custom roms and kernals and radios and other groovy stuff.
My main reason I want root is not only to get rid of the bloatware but that way I can have a unique phone and not like 80% of everyone else who has a stock EVO
My reason was so I could have total control of my phone, streamline it by removing the stuff I don't need, freeing up memory and storage space, modifying it to look how I want it to, coaxing a faster, smoother phone and being able to try out different setups to see which gives me the best performance.
I never use thethering.
HipKat said:
My reason was so I could have total control of my phone, streamline it by removing the stuff I don't need, freeing up memory and storage space, modifying it to look how I want it to, coaxing a faster, smoother phone and being able to try out different setups to see which gives me the best performance.
I never use thethering.
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+1. Same reason except I tether from time to time
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I root for the custom roms and kernels. I'm a synergy fanboy but its close to stock. Check out YouTube, look for an MIUI video, its truly amazing.
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Because AOSP is how it should be.
And that rhymes too.
mattykinsx said:
Because AOSP is how it should be.
And that rhymes too.
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LOL, he has a valid point. People like AOSP, some people like sense. Rooting let's you pick 'n' choose. Not being "stuck" in stock. I love my phone heavily themed, the eye candy sets it away from my friends phone. Plus my battery life/performance are much greater. But of course there are lots of reason to root and not to.
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I root because I own the damn device.
Everything I do with that root access is secondary to that.
Well I would love to get rid of all the bloatware and the time sound delicious.
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Because the ladies love it
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I rooted for the ability to tether. It also comes in handy when you need to replace a file like the flash file so that I can watch hulu on my browser. Another thing I should point out, HDMwIn allows me to mirror my display (no limits) over to my tv. With stock and no root, I can only display videos/pictures I recorded myself.
If anything, once they find a way to root 2.3.3, you should try it. Then if you don't like it, you can always set it back to oem status. There's a guide somewhere here.
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I root for mobile hotspot.
29.99 to tether with Sprint's 3G? bah, haha, ha, ha-ha
Being able to fix security holes and update your phone yourself is another big upside to having root; you can make sure it's secure yourself without having to wait forever for an update that may or may not come. That also happens to be one of the reasons why you will not see MIUI on my phone.

[Q] Root Clarification

I have rooted a ton of devices from tablets to phones and I don't specifically recall ever needing to flash an entirely different kernel to do so.
My question is, is a new kernel an understood for root access? I was under the impression root was, well...access, to system files and the like.
I'm actually pretty sure devices have been rooted PRE kernel source being released, and that source is more conducive to custom ROMs than anything else.
If someone who knows could clarify, I would be grateful and I also think it may begin to explain why some folks are *LOSING* functionality with root.
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The kernel is the heart of the OS. when the kernel is rooted, so is everything else
People are losing functions because the source code from Samsung is jacked up, and the devs are trying to pull it together
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Same thing I thought when I first bought my samsung vibrant... They whereusing the international galaxy s kernels untill samsung released sourcs to the current/up to date one... Samsung is know for latd updates and failed source codes
Well thats my opinion but they do make great hardware and tvs lol
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nate420 said:
Same thing I thought when I first bought my samsung vibrant... They whereusing the international galaxy s kernels untill samsung released sourcs to the current/up to date one... Samsung is know for latd updates and failed source codes
Well thats my opinion but they do make great hardware and tvs lol
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You aren't kidding about the TVs. I was at Sears and they had a Sammy glasses free 3D set up like 64" or something, Avatar was playing...literally jaw dropping.
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abowlby said:
You aren't kidding about the TVs. I was at Sears and they had a Sammy glasses free 3D set up like 64" or something, Avatar was playing...literally jaw dropping.
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Yeah I got a 52" there so nice
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Another way to achieve root without replacing the kernel is with an exploit that takes advantage of a bug i.e. in the bluetooth stack to temporarily gain elevated (SU) privileges and use it to install permanent root, flash a new recovery, etc. That's probably the kind of root method that you are more familiar with.
diesel556 said:
Another way to achieve root without replacing the kernel is with an exploit that takes advantage of a bug i.e. in the bluetooth stack to temporarily gain elevated (SU) privileges and use it to install permanent root, flash a new recovery, etc. That's probably the kind of root method that you are more familiar with.
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Ahh, that makes sense. See, a few devices I've rooted have been pretty straight forward. But the the OG rooting process on the Nook Color was odd as hell, and then the choice of booting SD or eMMC was another consideration to take. The process of rooting Tablets seems to be somewhat similar to this one floating around for the ET right now.

[Q] Password protect both Download mode and Recovery????

Hey guys..
Straight forward question..
Is it possible to password protect our Download and Recovery modes?
And i mean when you press and hold vol dwn+home+power method. Not through the android software reboot menu.
I want/like this idea because if someone were to steal my phone. They would NEVER be able to flash a custom ROM or even flash a stock ROM img. They would be completely locked out making the device useless to them.
The only way i think they could get past it is by using JTAG to overwrite the download partition with a stock one. But hardly anyone has a JTAG device.
Well this would be awesome. lol
Have at it
Im guessing it would require a modified bootloader. Not really sure though. Ive wondered about this myself. Never seen it done though.
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DocHoliday77 said:
Im guessing it would require a modified bootloader. Not really sure though. Ive wondered about this myself. Never seen it done though.
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I think it would be the ultimate level of security. And i agree a modified bootloader would be necessary. How one would go abouts creating one i am clueless.
elesbb said:
I think it would be the ultimate level of security. And i agree a modified bootloader would be necessary. How one would go abouts creating one i am clueless.
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As am I lol! This ones a bit above my skill level!
Problem is, itd have to be redone for each model. Unless there was a way to have sonething that could sit on top of or intercept power on and run before the bootloader....I really have no idea though, just tossing ideas!
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DocHoliday77 said:
As am I lol! This ones a bit above my skill level!
Problem is, itd have to be redone for each model. Unless there was a way to have sonething that could sit on top of or intercept power on and run before the bootloader....I really have no idea though, just tossing ideas!
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Too bad it's not the HD2
But yes I think one would need to be made for each device... and if I or anyone can create the bootloader, how would you flash the bootloader? JTAG device?
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Believe it or not, Im pretty sure you can flash any partition through Odin, so there you go! I could be wrong of course....
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DocHoliday77 said:
Believe it or not, Im pretty sure you can flash any partition through Odin, so there you go! I could be wrong of course....
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Hey you could be right too! I never knew that! Hmmm I think in my spare time I shall delve into this!
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Best of luck on it man! If I can be of help let me know, though on this dont expect a lot from me!!
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that is a great idea indeed.:good:
Very interesting topic, but I think it is impossible to do (Recovery & download) are design to prevent forgotten password issues.
What a pity
Guys i thnk if it can be done
It will be easy to install it on our devices if rooted (stock android)
As companies like sammy ,htc have diff kernals
I thnk we can successfully do this fr nexus ,micromax ,karbonn etc.....
Lets have a try
Ny one tried this before
If so plz gimme a guide of it so that it will b easy fr me
Lemmi try my best fr us to have ultimate theft protection on our android devices
I hope if it wrks google may add it on its future devices
The "ultimative" protection would be:
When a phone is stolen, you can remotely trigger "the suicide button" xD
When it is triggered and the phone receives the command (Even if the phone is running other ROM) it reboots the phone and erases the Bootloader and some other things that are important for the phone to work.
Best. Protection. Ever.
Second thing I could imagine is that phone companies could protect the download mode with a password (12 digits or so).
That password will come printed on one of the manuals when you buy the phone.
If you attempt to flash an image in download mode, you will be prompted for the password.
And, optionally, if you put the password 10 times wrong, it will erase bootloader and etc.
Third idea: The download mode only will prompt for a password (printed on the manual), if you atempt to flash another ROM on it... Because this will change the confidential signature that the old ROM has passed to the download mode.
(I am not sure if this could be done. I'm just saying ideas...)

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