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Easy overclocking?

Discussion in 'Android Devices' started by StuartTheFish, Nov 7, 2011.

  1. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    I recently upgraded from my Desire to a Sensation, and I'm rather pleased with it apart from it randomly popping up with the shutdown options every so often, and cordy causing graphics issues until I reboot the phone. Apparently that's a 2.3.4 issue, so we'll see if it gets resolved. Sense liked restarting whenever I exited apps at times too, so a launcher change sorted that. I've also found that gameloft games don't want to work on it either, presumably due to the different aspect ratio. Good old gameloft, as crap as they always have been. Shame, as one game of theirs, let's golf 2, I actually quite liked on my desire...

    Anyway, to the point of the thread. A friend just got the XE version, which runs at 1.5ghz out of the box as I'm sure most of you know. I read that the CPU is actually the same, just that it was underclocked for the original sensation. I don't like things being turned down, so now I'm wanting to ramp it back up.:)

    Problem is, I know sod all about rooting and custom roms, etc, hence my questions.

    I've had a look through some threads, but they mention changing the rom in order to overclock. Is there any way of overclocking while staying on the stock HTC rom, so it'll still get updates, etc? And has anyone got an idiots guide to doing it? Or is it possible to just stuff the XE software onto the normal sensation? I'm not bothered about the beats audio crap, but I'd like the extra clock speed.

    Also, does anyone know roughly how high the CPU can actually be overclocked to without causing long term issues? I know each CPU will perform slightly differently, but just a ballpark figure will do out of interest.

    Probably been covered countless times before, but I'm not finding much specific to the sensation, so thought I'd ask.
     


  2. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    So is there a simple way to allow overclocking? I only really want to get mine back up to the 1.5ghz that the manufacturer originally intended, but obviously if it can do more without issues then I might as well. :)
     
  3. mbatson89

    mbatson89 Android Enthusiast

    To overclock you need to root and flash a kernel that supports overclocking. Not sure if there is an overclock kernel for the stock ROM but to be honest, if you're going to root then you may as well take the extra step and flash a custom ROM and enjoy the benefits it brings.

    Follow the guide at XDA to root via revolutionary and how to flash a ROM through clockwork mod (don't use ROM Manager!). It's really simple (i managed it therefore it must be :p)

    To answer your question about how high it can be OC'd, i've seen people as high as 1.8Ghz and be relatively stable but i've got mine running 1.5Ghz and it runs perfectly
     
  4. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    I've had a look at that thread on XDA already, but Revolutionary won't even see my phone!
     
  5. mbatson89

    mbatson89 Android Enthusiast

    Have you installed the HTC drivers on your PC? if not, go to the HTC website, download HTC sync and install it but abort the installation process after the drivers have finished installing
     
  6. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    Yeah, it just didn't want to know. I've just tried again now though and I finally now have S-off. Can't access the HBOOT to install the recovery file though now.
     
  7. mbatson89

    mbatson89 Android Enthusiast

    If i remember correctly, you just rename the file PG58IMG and put it on the SD card then boot into the bootloader (Power + Vol.down) - if you're struggling to get into the bootloader pull the battery for 10 seconds then try again

    it should then ask you to press something to confirm you want to install (Vol. up?) and that should be it... let me know how you get on
     
  8. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    Pulling the battery did the trick, don't know why that'd suddenly let HBOOT work though!
     
  9. mbatson89

    mbatson89 Android Enthusiast

    It's the fast boot option that's checked by default, when you turn the phone off it doesn't actually turn off, more like a sleep mode if anything. This stops the phone being able to boot into recovery.

    If you want to turn it off settings > power > fast boot
     
    StuartTheFish likes this.
  10. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    Ah right, so it's like you not being able to access the BIOS on a PC if all it's done is go to standby. Cheers for that, makes sense.

    Just making a nandroid backup now, whatever that is. Seems to have frozen when backing up .android_secure though...
     
  11. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    Right, backup finished, so I just tried installing su-2.3.6.3-ef-signed.zip from the sd card, but it reckoned there's an error in it and it aborted installation. Tried again from a different menu and it worked though?

    So it seems I'm now rooted. So, er, now what? :)
     
  12. mbatson89

    mbatson89 Android Enthusiast

    well, this is the good part now :) Time to chose yourself a ROM, i've only used the one in my signature myself as it's very stable and is close to stock. If you'd rather though, you can install a ROM with Sense removed but being new to it, i'd give the ROM in my sig a go.

    when you've installed it you can plan around with the overclock settings with a pre loaded app called OCdaemon.

    Oh yeah, get yourself Titanium back up if you haven't already and back up all of your apps and data so you can re install them after you've flashed the ROM and always take a nandroid back up before you flash anything! If you ever get any issues you can just restore it back to a working back up
     
  13. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    Can I not just stick to my standard rom, so that I can still get OTA updates, etc? Or does rooting stop that anyway?

    I only want to adjust the clock speed to perform better on intensive programs and conserve battery when not doing much...

    Also, can I delete my backup now I've installed that zip file? Was that only if something went wrong, or will I still need it?
     
  14. mbatson89

    mbatson89 Android Enthusiast

  15. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    I can see the download links, but don't have a clue what to do with either of them.

    And why shouldn't you do OTA updates once rooted? Surely the only difference at the moment is the s-off setting? Would a change of kernel also mess up the OTA? If I'd have known that earlier I probably wouldn't have bothered, as I really don't want to be pissing around with custom roms. And according to that rooting thread on XDA, putting it back as it was can possibly brick the phone. I just wanted the stock rom, able to get normal OTA updates, but have the speed improvement of the XE since I found the normal one was turned down.

    EDIT:
    Now it seems I'm past the point of no return, I might as well try it. I've had a look around the forum searching for info on kernels, so am I right in thinking I just use clockwork to install the new kernel, the same as I did when rooting? I guess I need to clear the cache and dalvik cache before doing it. I assume I can do that from the menu's in clockwork? Just making another backup, and then I guess I'll find out if it works or not. If it doesn't I can simply restore my backup, correct? No chance of bricking?
     
  16. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    Cleared the cache and dalvik cache, but it won't let me flash either kernel in your link. It tries, gets so far then just says assert failed: write_raw_image ("/tmp/newboot.img", "boot"), then error in zip (status 7) and aborts...

    And since I've cleared the cache and attempted to replace the kernel, it lost some functionality of my phone. Thankfully the backup I made allowed me to restore it.
     
  17. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    Anyone?

    I've also found that es file explorer and setCPU think my phone's not rooted, even though I now have superuser access. On an adblocker I have recently downloaded, a pop up window appeared asking he I'll allow superuser access for it, but es file explorer and setCPU won't? Any ideas why?
     
  18. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    Since I got no more replies on here, I went over to XDA to ask in their forums. It turns out there's two versions of S-off, SHIP and ENG. Apparently you can only meddle with kernels once your HBOOT is ENG S-off, so I've just flashed my HBOOT via fastboot to see if it'll work. I have got an extra couple of options in the HBOOT menus now, though it still won't flash the kernel...
     
  19. StuartTheFish

    StuartTheFish Android Enthusiast
    Thread Starter

    Sorted it now, but I had to resort to flashing a new rom. Once the new rom was in, it flashed the kernel no problem, so either the method I used didn't root properly, or HTC made the OTA 2.3.4 update harder to root.

    All done now anyway, cheers for the links to the kernels!
     

HTC Sensation 4G Forum

The HTC Sensation 4G release date was 8th June. Features and Specs include a 4.3" inch screen, 8MP camera, 768GB RAM, Snapdragon S3 processor, and 1520mAh battery.

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