[General Topics] LSQRLL:
Hi to anyone that has this device and reads this :highfive: I'm sorry this is not a thread on how you can unbrick your device :(. this is for those who have started getting issues on their device and are thinking of flashing and wanna have some guidance on what to expect first ill say its not hard and nothing to be afraid of I'm writing this on hindsight so that you can avoid the mistakes I made.(theres a bit of back story but if you don't care just jump to the bricking)

the reason I flashed my device is that about 8 months prior to my bricking I was acting as the caregiver for an elderly relative and by a set of circumstances the phone got peed took it to get cleaned and all everything was fine the back camera was shot the rest of the phone was fine the front camera was still working but was been disabled by the the device so I rooted the device and forced to get the front camera to work since I had done some test and I could get it take pictures all well till this point about 3 moths before the bricking the phone started to have issues with the contact app then a few days latter I would get stuck in a reboot cycle so I went into the developer screen and ran a root diagnose 14 files were corrupted according to the device so i decided to flash it i had already done this on a different phone so I figured nothing to worry there are many INTERNET guides and videos to this process so I won't link or describe much of this part key words are [sp flash tool(to connect your computer to your device and load the new firmware), CDC driver (an uncertificated* driver to actually use sp flashtool), firmware tab 3 7 essential TB3 710I**(to find the ROM for the device be very carefull for there are 2 diferent ROMs for the device the first ending on 0I and the second ending on 0F)].

*this driver has some issues running on windows 8 if you have this one like i do you only need to search how to run uncertificated driver most of the time it will be explained on the same page you download it but in case its not you don't have to worry.

**you can find this out on the box of your device or when you run developer screen (power + plus volume)

moving on the flash was successful and all well and to my surprise the front camera was working fine without me having to do anything then about a month after again I was at family meeting and I wanted to try to take a picture with the front camera of my meal and me as you can guess this was not easy and i already had taken pictures before this way but this time the app crashed then the device started sending messages of other apps and systems crashing and blocking me out so I figured guess its time to re flash again....

the BRICK

I went home and first thing I checked was root integrity now there were 44 files that failed First bad sign so I used the flash tool with the same ROM I was already using (Lenovo_Tab_3_TB3-710I_MT6580_S000032_160921) restarted the phone like usual it was still booting at this point but for some reason it would not load past the lenovo logo (first mistake I was feeling anxious cocky and rushed I should have given it time) I waited few moments and nothing so I figured "its the same ROM of course it will still be crashing" and the basis that the system could not tell the difference that I had just made a fresh install so I emptied the cache and flashed again did not seem to work so i download a new ROM an older version s000029 it still did not work then I tried a newer one s000035 nothing and I noticed on the developer screen the ROM that was supposed to be on my device was still the s000032 I figured something must be happening to the sp tool so I tried using the developer screen tools to upgrade the firmware as a fool I presed the first option on the OTA update option while trying to use the sdcard option it got stuck there a while i was not in a waiting mood so I forced stopped the device (second mistake don't do this ever I figured since nothing was been sent and it had not picked up anything i would just go on as intended) I tried again with the zip file on the sd card now in the right option but it would simply not load it would just insta stop and say installation aborted I new this was BAD I again ran a check on the root again and this was all it would show:

Now check begins, please wait...

Load source zip file fail

System check fail!

after that I knew I had just soft bricked the tablet and that I had just about tried all that I could to fix something like this I spent the next 8 hours reading surfing and trying to come up with a solution to this none worked and then I had a suggestion why didn't I use the lenovo smart assistant it had a rescue feature for bricked phones! (my last and worst mistake) so I downloaded the program strait from the lenovo page for the tab 3 7 essential and it indeed had the rescue feature all it required was me to be sure of the model and the right i/o which i check on the box and on the back plate of the tab and the ROM appear seeing the name it was about the same as the ROMs i had already downloaded about the same size too over 900 Mb so pressed start and it was on after downloading the steps were the same as with the sp tool turn off phone then connect wait then disconnect and done so I did and the tab now was bricked as before the lonovo assistant while i could not start android i could still run and start the dev screen but after the phone simply got stuck on a restart loop and i was locked off the dev screen now i could not check or do anything i have ran a few more sp flashes even full format and memory checks (all successful) the usb connection still works but i have not been able to unbrick the TAB so I'm moving on got my sight on a xioming for now

lessons

*don't rush when flashing if you have things to do and you don't need your phone do them then flash in peace

*if you have flashed once before successfully do a back up on the dam dev screen it only takes an 8Gb sdcard and 30 minutes tops

*the coding on the contact app is a bit faulty just download the contact app from google

*if you suspect theres hardware damage disable the parts that are damage not sure but i suspect this is what corrupted my root files

*the back plate is a bit hard to remove but you should always try to do sp before you start flashing to disconnect the battery and have very small screwdriver philipshead i also suspect this may have had a part on this

*never use the lenovo assitant i think this is why most people don't even mention it on a first dive when you search