Aaron Gadberry

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Archive for the 'Computers' Category

Anything pertaining to computers.

Configuring Logitech Harmony Hub with Pace DC60Xu HD DTA

23rd August 2015 - By Aaron Gadberry

When configuring the Pace DC60Xu HD device in the Harmony Hub, the Page Up / Page Down commands are missing from the preloaded device profile.  I was not able to train / learn these commands either.  The Hub just wouldn’t pick up the signal.  I added a Pace DC50-X device instead, and all of the preloaded commands worked.  I just mapped the Page Up / Page Down commands to the Channel Up / Down button on the remote, and everything works great now.


I contacted Harmony Hub Support and they said they will copy the commands to the DC60Xu HD profile, but who knows.

Posted in Computers | No Comments »

Proposal: Automatic In-Browser Download Hash Checks

25th February 2013 - By Aaron Gadberry

A new series of attributes as part of the <a> tag to verify the authenticity of a downloadable file automatically by the browser.

e.g. <a href=”http://mirror.com/myFile.zip” md5=”f73ddb63ddaa96039dc53d34aa7d4f4f”>Download My File</a>

Upon downloading the file, the browser would automatically verify the authenticity of the file by generating the required hash and comparing it against the provided value.

Posted in Programming | No Comments »

Update Epic 4G from FROYO.DK28 to Gingerbread.EI22

21st December 2011 - By Aaron Gadberry

I was one of the unfortunate ones that updated to DK28 in the first days that Froyo was released on the Sprint Epic 4G. The Gingerbread.EI22 update that came out in November did not appear as an available update on my Epic, because I had Froyo.DK28, and it is only an update for Froyo.EC05. Unfortunately, there is no OTA path from DK28 to EC05, nor one from DK28 to EI22. I opted to flash from DK28 to EC05 manually, and then follow the OTA updates to EI22. In the process of the manual update to EC05, unfortunately I would have lost all applications and data, so that added the complication of rooting before the flash, and after the eventual EI22 update, in order to restore the application data.

  1. Root the existing Froyo.DK28 using instructions found here: http://forum.xda-developers.com/showthread.php?t=1076967
  2. Backup applications and data using Titanium backup (I bought the PRO version, although it looks like you could accomplish what is needed with the free one)
  3. Odin back to EC05 using instructions found here (addl instructions below): Flash/Restore to Froyo EC05
    • Download and Install drivers first (they fail to actually tell you to install them)
    • Change Odin to compatibility mode for XP SP3 and run it as an administrator
    • Sometimes it may help to remove the SD Card and/or Battery before entering download mode
    • If you get stuck, like I did, realize that Odin is very picky about USB cables
    • As long as you can get back to the downloading mode, you should be ok
  4. Boot into the stock EC05, and check Settings > About Phone > System Updates > Update Android. It should be downloading Gingerbread.EI22. Let the update complete.
  5. Root the new Gingerbread.EI22 using the instructions found here: http://forums.androidcentral.com/epic-4g-rooting-roms-hacks/132495-rooting-ei22-gingerbread-instructions.html or here:http://forum.xda-developers.com/showthread.php?t=1339478
    • The instructions have a bad link to ACSRecovery1.0.0.5.tar.md5 and su-3.0-efgh-signed.zip but the good link can be found on page 11
    • Be sure to get the file ending in md5. For some of these there are .tar and .tar.md5 so be careful.
  6. Reinstall Titanium backup from the market and restore applications and data

Posted in Computers | No Comments »

Android Application Data Sync / Backup

27th June 2011 - By Aaron Gadberry

The Android platform is great, when used in isolation, but owning multiple devices is not really supported (as of my Epic running 2.2 and my Transformer running 3.1). Of course you can own them independently, but there is no support for device linking or sharing of information. As Android is maturing, so are the apps that run on it. What is application data? Application data isn’t the spreadsheet or document saved to the SD card. It is the data specifically associated with each application, such as user settings or saved states. In Android there is no opportunity to sync, or even backup, application data. Neither is there an app that can accomplish this, because it is prohibited for apps to access other apps’ data (appropriately so). The only group that can effectively deploy this functionality within Android is Google.

Of course the difficulty depends on the complexity of the implementation, however the design is fairly simple. Application data is organized and maintained by Android today. Users have the opportunity to clear it through the Manage Applications interface. Would it be so hard as to sync it or back it up as well? This could be easily implemented for ALL applications.

The versioning could be maintained separately. Mobile app version 1.1-1.8 and honeycomb versions 1.0-1.5 are compatible with application configuration 1.1, etc.

Here is the best feature request for application data sync / backup I could find. Please go star it if you agree.

The high points of design I agree with are

  • All applications should be supported
  • Only application data need be supported, not the actual application
  • Sync to Cloud
  • Backup to Local or Cloud
  • On demand or on schedule or triggered syncs/ backups w/connection and/or size based controls
  • Compression
  • Block hashing
  • Encryption

With multi-device users, this feature is essential, and only able to be provided by Google.

Posted in Computers | No Comments »

Installing a OCZ Vertex 2 SSD in a Lenovo T60p

14th March 2011 - By Aaron Gadberry

Well I was very pleased to receive my 120GB OCZ Vertex SSD today, but disappointed when it didn’t fit in my Lenovo T60p. After doing some google searches I didn’t find anyone else with the problem. Isn’t it strange that when google has no results we assume we are doing something wrong?!?

Anyways I tried seating it about 20 times, and was finally able to get it to go all the way in. Don’t force it, just jiggle it. It will go. It may help to remove the bumpers and get it in with just the tray, and then try again with the bumpers.

Good luck!

Posted in Computers | No Comments »