I don't know how to get it into recovery.
I've been searching myself.
I however found a way to confirm this device is rooted. There is am app called "Root Checker"
In any app store, download that app, it should be free.
Anyways, I clicked to confirm if it was rooted, and it says it is already rooted.
Under my kernel version it says Root@ubuntu #56 or something like that, so I'm assuming it was rooted and something to do with ubuntu...
Anyways, I've installed a terminal IDE app, and typed SU, shows # which I believe also means rooted.
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Now that it is rooted, I've forgotten all my great ideas for changes and things to do that only rooted phones can do. Kinda sad. lol
But I will start looking for manual overclocking modification methods.
As I have not yet found any overclocking applications that support this devices hardware...
I like it a lot, runs flawlessly, and smooth, except for the ocassional lag on the internet browser, I'm thinking a small 0.1-0.2 GHz bump will do the trick.
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EDIT:
Okay I went and got setCPU for android out of my Samsung phone and managed to get it installed on my tablet.
Here are the specs of the UNIDEN tablet 7" BELOW:::
PROCESSOR:
Processor: ARMv7 Processor rev 2 (v7I)
BogoMIPS: 1001.88
Features: swp half thumb fastmult vfp edsp neon vfpv3
CPU implementer: 0x41
CPU architecture: 7
CPU variant: 0x3
CPU part: 0xc08
CPU revision: 2
Hardware: sun5i
Revision: a13a
Serial Number ""I will not post this as I believe it is device specific.""
DEVICE:
Board: nuclear
Product: nuclear_a702UNIDEN
Model: UTAB71
Device: nuclear-a702UNIDEN
Build: a702UNIDEN v1.5.0.5 20120827
Manufacturer: UNKNOWN
Brand: softwinners
CPU ABI: armeabi-v7a
Kernel: Linux Version 3.0.8+ (root@ubuntu) (gcc version 4.5.1 (sourcery G++ Lite 2010.09-50)) #56 PREEMPT...
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******* I hope this helps all of us! I do not know where to start as far as modifying a kernel or ROM for this device, but I found these specs above.
SetCPU does seem to increase the CPU frequency, but I don't think the voltage changed at all, so... I will be working on what I can with my device, I will post if I find anything useful as far as anything goes.
Maybe with luck, this device will run windows 8 for ARM!
I can only try.