How do I update my T68?

[Purple Lady]

Originally Posted by downeaster59

I was able to successfully re-root with towelroot v1.

Thanks! I have the paid version of Supersu and it has a setting to keep root after an ota update. I'll try that first.

[Purple Lady]

Originally Posted by downeaster59

I was able to successfully re-root with towelroot v1.

Since you said re-root, I assume you were already rooted. Did you root with towelroot v1 originally? There's a post on the Digital Reader by someone who didn't update successfully - http://the-digital-reader.com/2014/0...comment-540298

Careful with updates after rooting. I rooted using tr1, then checked for an update. After downloading and installing the device doesn’t power on. Suggestions welcome on how to recover it…

[Purple Lady]

Originally Posted by Purple Lady

Since you said re-root, I assume you were already rooted. Did you root with towelroot v1 originally? There's a post on the Digital Reader by someone who didn't update successfully - http://the-digital-reader.com/2014/0...comment-540298

I extracted the update script and hubby tells me that when you write to a partition it can't be undone. So if any step fails I would think you could have a brick on your hands. If you could access a custom recovery you might be able to fix it, but none exists. I would think if you could access fastboot you could flash the images if you saved them. Here's the update script and it's way different than Android update scripts:

ui_print("Checking Update Package Matching");
package_extract_file("android-info.txt", "/tmp/android-info.txt");
assert(file_getprop("/tmp/android-info.txt", "board") == getprop("ro.product.board"));
ui_print("Done Package Matching\n");

package_extract_file("u-boot-no-padding.bin", "/tmp/u-boot-no-padding.bin");
ui_print("Writing Bootloader...");
simple_dd("/tmp/u-boot-no-padding.bin", "/dev/block/mmcblk0", 1024);
delete("/tmp/u-boot-no-padding.bin");

package_extract_file("logo.bmp", "/tmp/logo.bmp");
ui_print("Writing Logo...");
simple_dd("/tmp/logo.bmp", "/dev/block/mmcblk0", 3145728);

show_progress(0.1, 2);
package_extract_file("boot.img", "/tmp/boot.img");
ui_print("Writing boot image.");
simple_dd("/tmp/boot.img", "/dev/block/mmcblk0p1", 0);

show_progress(0.2, 10);
ui_print("Extracting system image...\n");
mount("vfat", "EMMC", "/dev/block/mmcblk0p4", "/tmp/flash");
package_extract_file("system.img", "/tmp/flash/system.img");
ui_print("Writing system partition...\n");
simple_dd("/tmp/flash/system.img", "/dev/block/mmcblk0p5", 0);
delete("/tmp/flash/system.img");
unmount("/tmp/flash");

#ui_print("Formating data partition");
#format("ext4","EMMC","/dev/block/mmcblk0p7");

[HarryT]

Yes, that presumably is why it rigorously (perhaps too rigorously) tests the update package before it will install it.

[downeaster59]

Originally Posted by Purple Lady

Since you said re-root, I assume you were already rooted. Did you root with towelroot v1 originally? There's a post on the Digital Reader by someone who didn't update successfully - http://the-digital-reader.com/2014/0...comment-540298

Yes, I did root with towelroot v1 originally. I rooted again without issue. Oddly enough, I even saw the "make it rain" button that was invisible the first time around.

But, alas, my T68 has developed a different problem. It will spontaneously start a reboot loop for no obvious reason. Artatech tells me to send it back to Amazon for a refund or exchange. I can do the refund, but since Amazon is out of T68s for now, no exchange. Maybe Booxstor... we'll see!

[Purple Lady]

Originally Posted by downeaster59

Yes, I did root with towelroot v1 originally. I rooted again without issue. Oddly enough, I even saw the "make it rain" button that was invisible the first time around.

But, alas, my T68 has developed a different problem. It will spontaneously start a reboot loop for no obvious reason. Artatech tells me to send it back to Amazon for a refund or exchange. I can do the refund, but since Amazon is out of T68s for now, no exchange. Maybe Booxstor... we'll see!

There is a reboot loop problem associated with the battery level. Mine starts up at 30% and others at 15 - 20%.

[downeaster59]

Originally Posted by Purple Lady

There is a reboot loop problem associated with the battery level. Mine starts up at 30% and others at 15 - 20%.

Mine happens at 70%, or 80%, or even 85%!!! So, it would be a hassle to even try to get it down to 30%.

I am aware of that low battery level problem, but this seems to be different.

[t_chip]

Can someone post a download link for the T68 Lynx update.zip? Mine is stuck in a boot loop and I want to try system restore with an update file on the external sdcard. It's possible to put the T68 into system restore by holding down the back button on the left side while pressing the power button. Trial and error to find the correct button.

[HarryT]

Originally Posted by t_chip

Can someone post a download link for the T68 Lynx update.zip? Mine is stuck in a boot loop and I want to try system restore with an update file on the external sdcard. It's possible to put the T68 into system restore by holding down the back button on the left side while pressing the power button. Trial and error to find the correct button.

Unfortunately there doesn't seem to be a downloadable version of it. It's an OTA-only update.

[gloriousglib]

Originally Posted by downeaster59

Mine happens at 70%, or 80%, or even 85%!!! So, it would be a hassle to even try to get it down to 30%.

I am aware of that low battery level problem, but this seems to be different.

I have experienced the shutdown on similar percentages. When unplugged, the device lasts til maybe 50% battery before shutting down (shuts down sooner with wifi). But to have it plugged in, the battery must either be above like 80% or powered off to avoid bootloop. Incredibly irritating. Save for the battery and touch inaccuracy, this would be the perfect tablet. Here's to hoping for good software updates...

Note: Running Lynx version

[Purple Lady]

Originally Posted by HarryT

What I've done is to unmount my SD card, manually delete the "update.zip" file from the root of internal storage, reboot the device, and then re-download the update package. It then successfully installed, but which one of these operations allowed it to work I have no idea .

Thank you very much for the help - I greatly appreciate it.

I finally got to update this week. I kept getting the E-signature verification failed, but it turns out the download was not the problem. I unmounted my sd card and rebooted. I then went back to the system update section and tapped "check update from local storage" and the update was successful. Has anyone else with an sd card updated successfully?

[HarryT]

Removing the SD card was one of the things I suggested earlier and you said you'd already done that . Happy to hear it's worked for you. Have you found that the touchscreen is more accurate now?

[Purple Lady]

Originally Posted by HarryT

Removing the SD card was one of the things I suggested earlier and you said you'd already done that . Happy to hear it's worked for you. Have you found that the touchscreen is more accurate now?

I was hoping no one would notice I had said that; thanks for telling me I don't know what I'm talking about. I may done something stupid like putting the sd card back in before I rebooted. I was on vacation at the time and thought the crappy wifi might have been the problem.

The touchscreen wasn't always a problem for me before and I haven't noticed any improvement. It's still not good sometimes and just ok most of the time.

[HarryT]

It's specifically the soft keyboard that I'm seeing the accuracy improvement with. Previous, the key below the one I was aiming for would activate perhaps 1 in 4 key presses. Now it's at least 95% accurate for me.

When the next update comes out I'll try it immediately without the SD card in and see how it goes. I'm beginning to suspect it's the SD card that was the cause of our problems.

[Purple Lady]

Originally Posted by HarryT

It's specifically the soft keyboard that I'm seeing the accuracy improvement with. Previous, the key below the one I was aiming for would activate perhaps 1 in 4 key presses. Now it's at least 95% accurate for me.

When the next update comes out I'll try it immediately without the SD card in and see how it goes. I'm beginning to suspect it's the SD card that was the cause of our problems.

I installed Thumb keyboard after having problems entering my wifi key because I couldn't get caps lock to work. Thumb keyboard has a problem when I try to use the back key it will do a new line 60 - 70% of the time. Maybe I'll try the stock keyboard again.