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My friend just bought an iphone off ebay. When we got it, it was locked so I put it into DFU mode to try to install firmware 1.4 or 2.0.

When I go into Itunes I shift click the restore button and it does the extracting software and then it gives an error message saying The iphone "iphone" could not be restored. An unknown error occured (20).

So i figure its already on 2.0 so I try to use the 2.0 firmware i had used on my iphone. It gets a little farther past the extracting software it will go to preparing iphone for restore but it gives the same message but the # at the end is different

The iphone "iphone" could not be restored. An unknown error occured (6).

Anyone have any idea what may be causing this.

Ive trying to pwn it again using winpwn but it wont detect the phone I imagine cause its in DFU mode. And the screen I have on DFU mode is different than the ones I usually see. This one has the Itunes logo with the words itunes under it and then the connector shows the male usb connector that goes into the computer not the male connector that plugs into the iphone or dock.

in my room I still get the 2 to 3 bars of 3g but it's very sensitive and goes to edge more often now then ever. I usually get edge in my basment I get more edge since it's a basment I wouldn't get 3g I only get edge there. So basement is improved.

But in my living room I used to get 3g and now I do and it goes away like it's very sensitive and even in my room I do get 3g like I said but it's very sensitive And goes to edge a few times which never really happened before.


Was this firmware supposed I fix the 3g problems or that's supposed to be in 2.02

alright heres the thing i just decided to use winpwn today and followed instructions carefully and done everything correct. i even used the guide from this forum made by ipodgamez. i have a clean 2.0 firmware, and made a correct ipsw copy. i've have also successfully pwned itunes. and YES i did put my ipod in DFU mode correctly because it had the sounds on my computer and the screen remained black until i started to restore it on itunes. everything checks out until after it's done preparing the ipod for update. it says some stupid thing about having an error and failed or could not update ipod. I DONT GET IT I'VE DONE EVERYTHING CORRECTLY AND STILL I CAN'T PWN MY IPOD. Pleasseee people i am Begging you guys. i really need your help please

I am on 2.0.1, and have like 4 pages of apps and a nice theme all my icons arranged nicely etc.

When I try to open my already pwnt firmware, it says unknown file (Im assuming because its unsigned?)

How can I change my boot logo without loosing all my apps etc?

Can I take a clean 2.0.1 and pwn it and change the boot logo then restore with it? Will I still have all my apps etc?

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I just tried to the begining of a the Jailbreaking process by downloading firmware v 2.0.1 (currently have 2.0.2) and doing a sift+restore and installing the 2.0.1 firmware. Well, Itunes said the file was invalid or something along those lines and now I had to do a restore. Well anyways, I wanted to know if it was possible to just use the same firmware file I tried to use on Itunes (2.0.1) as my ISPW file for Winpwn....Am I making any sense? This is all new to me and Im a bit confused. Thanks for any help:)

So you need to design highly available MySQL powered system… how do you approach that ?
Too often I see the question is approached by focusing on expensive hardware which in theory should be reliable. And this really can work quite well for small systems. It is my experience - with quality commodity hardware (Dell,HP,IBM etc) you would see box failing once per couple of years of uptime which is enough to maintain level of availability needed by many small systems. In fact they typically would have order of magnitude more availability issues caused by their own software bugs, DOS attacks and other issues.

However as your system growths the reliability goes down. If you have 100 servers with each failing every 2 years this is about a server a week which is bad and if you’re into thousands and tens of thousands of servers server failures are becoming common place so it is important to make sure failing server does not affect your system and also what you can recover from server failure easily

So you should assume every component in the system can fail (if it is Server,Switch,Router,Cable, SAN) etc and you’re ready to deal with this. It does not mean you always have to ensure you stay fully operational after any failure but at least you should understand the risks. For example you may want to choose to keep single Cisco router because it has its own internal high availability on the component level which makes it extremely unlikely to fail, because you have 4 hour onsite repair agreement and because it is just freaking expensive. Though may be redundant less expensive systems could be better choice.

I would highlight again every component can fail it does not matter how redundant it is inside. The SAN is very good example - I’ve seen Firmware glitches causing failure in the SAN which was fully redundant on the component level. It is not every hardware component but also any code may fail as well. This is actually what makes your own code often the weakest link in availability.

Depending on failure rate you also should be thinking about automation - for frequent failures you want to recovery (like getting spare Web server and putting it online) to be automatic or done with simple manual command. For complex and rare failures you may have less automation - if certain type of failure happens once per couple of years for many evolving systems there is very high chance the old automation tools may not work well (this is of course unless you always test all automated failure scenarios regularly).

So if we’re designing the system so it can tolerate hardware failures should we bother about hardware quality at all ? The answer is yes in particular for classic database/storage systems. Few systems are design with so much error detection and automated handling in mind as Google File System.

In particular you want to make sure Error Detection is on the good level. For example if you’re running the system without ECC memory chances are your data will melt down and you will not notice it for long time (in particular if you’re using MyISAM tables) which can cause the error to propagate further in the system and make recovery much more complicated than simply swapping the server. This is exactly one of the reasons many high scale installations prefer Innodb - it is paranoid and this is how you want your data storage to be. This is also why Sun is so proud about checksums on the file system level in ZFS.

What is about RAID when ? As strange as it may sound but you should not relay on RAID for your data safety. There are many ways to loose data on RAID system even if you’re running RAID6 with couple of hot spare. The RAID is just dramatically reduces chance of data loss in case of hard drive failure and this is good because recovering database servers is not fully automated in most cases. Plus there may be system performance impact and (in particular if you use MySQL Replication for HA) the switch to the new server may not be 100% clean with few updates lost. RAID, especially with BBU also makes a good sense to get extra performance out of the box.

Some installations are using RAID0 for slaves - in these cases there are typically many slaves and recovery of the slave is very easy and causes no business impact. This is fine assuming you do the math and the performance gains or cost savings are worth it.

Another good RAID question is if Hot Spare should be used. I normally do not use it because it a large waste, especially as most of systems have even number of drives, so if you’re looking for RAID10 setting up hot spare costs you 2 drives. Having hot spare does not add a lot to high availability - if you have proper RAID monitoring in place and keep couple of spare hard drives on the shelf in the data center we’re speaking about couple of extra hours running in degraded mode. Even if you do not have spare hard drive you can often pool the one from the spare server and have the “warranty man” to replace it instead.

It is also a good question if you need redundant power supplies. In my experience they rarely fail so having redundant power supplies does not increase availability when it comes to hardware failures that much and so if you just look from this angle it may be justified only for the most critical servers. Do not forget redundant power supplies also increase server power usage a bit. Redundant power supplies however are helpful if you have multiple power feeds, so server can stay up if one of the phases has a power loss. Another benefit is - in redundant power supply will often allow to do some power work (like moving server to different circuit) without downtime which may be or may not be something important for you.

Finally I should mention about spare component. These are paramount if you’re designing highly available system. Having spare drives on the shelf, spare switches, spare servers (which are same as better as servers which are in production) is paramount. It is important promotion happens easily and there are no performance gotchas (ie 8 core server can be slower than 4 core with MySQL). It is best if you just put couple of spare servers in each purchase batch so they are absolutely same configuration but I know it is not always possible. Dealing with spares is yet another reasons to avoid the “server zoo” and have limited set of purchased configurations which are reviewed yearly (on other regular interval) rather than finding different best configuration each week.

Having spare servers also means you often do not need most expensive support agreements and Business Hours Monday-Friday is good enough for you - you’re not waiting for support for production anyway just fall back to another server and use it. Of course you can imagine cases when problem could affect all servers of the same type but it is not that frequently seen in practice.

To avoid multiple servers failing at the same time it is of course important to QA/Stress test servers before you put the load on them. I’ve seen multiple cases when something would go wrong and all servers of same configuration will experience the same problem. Proper QA/Stress test reduces the chance of this but you better to be testing with load similar to what you expect in production.

Requirement to have Spare hardware is also the reason why commodity inexpensive hardware is often better choice. If you have couple of $1M in production you need another $1M server as a spare and this is expensive. If instead you have 10 pairs $10K boxes having couple of spares would cost you only $20K plus I found it in many cases much easier to convince “finance” people to buy something cheap which is not used most of the time when to spend a lot of money on the server which will be where sitting doing idle.

How many spare servers you need - you would see it in practice. As I mentioned at least one for any hardware class you have. If you have many failures you need more of course. You may also decide to keep more spare systems when you can use them to help capacity management, especially if you have multiple applications which do not share hardware but share the data center. You may have “spares” to provide extra on demand capacity for web servers or memcached quite easily, or say increase number of slaves if you have unexpectedly high number of reports launched by users etc.

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I was pwned and i restored today because the phone was very sluggish. I now have 2.0.2 firmware. but since uprgrading (downgrade really :confused:) the mail app opens and then crashes. I have tried restoring twice, syncing and turning it off/on. any ideas on how to get it to work again?

iPhone users will be happy to know that QuickPwn now handles the 2.0.2 firmware. The UI (user interface) has been updated, and though QuickPwn will Pwn and jailbreak the phone, it won’t unlock it. The DevTeam are currently working on a graphical Mac OS X version of QuickPwn. It looks like the pwnage of the iPhone will continue for some time.

iPhone users will be happy to know that QuickPwn now handles the 2.0.2 firmware. The UI (user interface) has been updated, and though QuickPwn will Pwn and jailbreak the phone, it won’t unlock it. The DevTeam are currently working on a graphical Mac OS X version of QuickPwn. It looks like the pwnage of the iPhone will continue for some time.

Has anyone noticed that with the new Firmware their battery life has gone down? Mine has gone down a bit but I don't really care since my Ipod is finally running smoothly and the internet is much faster.

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Skipping the "leaks and rumors" part of a device life cycle, the Samsung BD-P2550 just showed up on BestBuy.com. It is positioned as a high-end player with supposedly good video scaling capabilities, Dolby TrueHD (7.1 channel), upgradable firmware (via USB or Ethernet). If you are really looking for these features, take a look. Personally, I'd rather buy a PS3, which is still considered as one of the best Blu-Ray player out there and it has movie rentals/downloads. Did I mention games?

Add a comment | From: Samsung BD-P2550 high-end Blu-Ray player at Best Buy | Visit Ubergizmo

I read that you can set your background as a video on 2.0.1 firmware, and I wanted to do it but I couldnt think of a good one to use.

So then it hit me, why not use one of the ipod commercial's as the background, but the problem is, I cant find a good HD one, and I dont know how to resize it so It will look good on the iPod/iPhone.

If I had the video editing skills, I would zoom the video out, and change the dimensions to that of the touch.

Anyways, if anyone can do this for me I will love you forever.

Here is the link of the Application...WEBCLIP

http://rs5.rapidshare.com/files/82996617/Xbox.zip

works fine on firmware 1.1.X ,,,but in firmware 2.0.X doenst appear in the springboard...

i want to compile or modify to work with firmware 2.0.X

can you help me please?

From http://blog.iphone-dev.org/post/4680...wnies-dressage
Quote: My Little Pwnie's Dressage

Here is the updated QuickPwn for Windows, wrapped by Poorlad’s GUI. It contains our new bundles for 2.0.2 and we’ve added support for version 2.0 devices which means you can QuickPwn and jailbreak the device if it is running 2.0, 2.0.1 or 2.0.2.

Remember this is still beta software, so usual rules apply, no complaints ifanything goes wrong and use the tool at at your own risk!

Download here! (http://xs1.iphwn.org/releases/QuickPwnGUI120.zip OR http://rapidshare.com/files/13905058...kPwnGUI120.zip) SHA1 = 8e1ed2ce9e7e473d38a9dc7824a384a9ac34d7d0

NB: Using QuickPwn does not update the firmware itself, this tool is designed to ‘Pwn’ (the ability to install future custom non-Apple firmwares) , ‘Jailbreak’ and install Installer or Cydia on a given device. If your device is running 2.0.1 and you QuickPwn it, it’ll still be running 2.0.1, although it will now be Pwned and Jailbroken, similarly if your device is running 2.0.2 and you QuickPwn it, it will then be running 2.0.2 but the device will now be Pwned and Jailbroken. It will also activate (not unlock) devices that are being used outside of their intended territories and cannot be activated using iTunes.

If you want to update to 2.0.2 then use the normal iTunes update to get to 2.0.2 and then use QuickPwn to Pwn, Jailbreak and Activate, remember that the 2.0.2 update includes a baseband update for the 3G iPhone, so depending what your long term intentions are for the phone, update wisely, of course in the upcoming PwnageTool application you’ll be able to create a custom ipsw without the baseband update enabled.

Our Mac GUI whizzes in the team are working on a graphical Mac OS X version of QuickPwn and also adding some nice little tweaks to the next release of PwnageTool. As soon as these are finished and tested, we’ll let you know, but don’t hold your breath and refresh for these, the release is not imminent.

Again, no updates from our baseband hackers with regard to the unlocking of the 3G iPhone. Download links:
http://xs1.iphwn.org/releases/QuickPwnGUI120.zip
http://rapidshare.com/files/13905058...kPwnGUI120.zip

2.0.2 Firmware (2G):
http://appldnld.apple.com.edgesuite....1_Restore.ipsw

2.0.2 Firmware (3G):
http://appldnld.apple.com.edgesuite....1_Restore.ipsw

Tutorial:
http://forums.macrumors.com/showthread.php?t=546453 (Steps are the same, just use 2.0.2 firmware instead of 2.0.1)

via MacNN:

The iPhone 2.0.2 update that was supposed to improve 3G connectivity may have had an unexpected negative effect on download speeds, accounts say. Test My iPhone is a site that allows users to test their iPhone's download and upload speeds, and also keeps track of average speeds recorded in the last 24 hours. The site has completed just over 600,000...


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I notice a easy way and 100% success to access DFU mode. (No need timing count) :)

1. Plug in your ipod touch / iphone to PC.
2. Press "Home" and "Power" button until device off and release both button.
3. Press and hold "Home" button.
4. Press "Power" button once and immediate release it but still hold the "Home" button
5. Wait until the iTunes appear and mention you are in recovery mode and release the "Home" button and now you are in the DFU recovery mode.

Step number 4 is the step different than any written, no need to press and hold "Power" button around 7 to 10 seconds, this is not a correct way and due to wrong timing count, you may accidentally power on the device and this will make you access to normal recovery mode rather than DFU mode. I notice this after a thousand time restore due to the buggy firmware 2.0.x springboard.

The iPhone 2.0.2 update that was supposed to improve 3G connectivity may have had an unexpectedly negative effect on download speeds, accounts say. Test My iPhone is a site that allows users to test their iPhone's download and upload speeds, and also keeps track of average speeds recorded in the last 24 hours. The site has completed just over 600,0...