[Q] Can somebody help me interpret this debug screen? (Wave GT8500)

A while ago I received a free Wave S8500 running Bada 1.2. Since this OS was pretty awful I decided to upgrade having done the process before on another phone of the same model. Unfortunately I was stupid and managed to flash the wrong files so my phone ended up in a boot loop. I found the correct set of files and tried to flash them but Multiloader only works up to SHP APP, at this point it fails with a "serial port open error". When I try and boot the phone I reach a blue screen full of the following debugging information:

Page: 1/2 <Pic #>

S/W version: S8500+XP+KJ1
Modem: Q6270B-KPRBL-1.5.45T
SHP: VPP R5 2.1.1
Build Host:s1-AGENT08
BuildAt:2011/10/05 22:44:23

App Debug Level l: 0
ASSERTION_REQUIRE:m_hLib != IN
VALID_HOBJ failed/ (file WinLibDllMgr.cpp, line 40)
Cannot load (shpWindow)
<Callstack information>
PC = 40318BEF OemDumpRegister
LR = 403118 OemDumpRegister
<Running Task(InvalidTask) Call stack>
_SysAssertReport
GWES:WinLib::CDI I Mgr::LoadLibrary
WinLibDllProxyInit
WinLibDispatch
OemBmPrelnitMochaTask
mochaTaskPreInit

Page: 2/2 <* #>

All HW Information:
HW VERSION: S8500_REV07
IMEI VERSION: Not Active
RF CAL DATE: Not Active

Bad Block Information:
nNumBMPs : 0
nAge : 0
Run Time Bad Block Occurred :
Init BMPs = 2, Current BMPs = 0

Nucleus Task Information:
Running Task name = SHP_PRE SI
ices = 00000000
Wait = 00000000
Signal = 00000000
Priority = 0

To exit
Press 0 for 2sec

After pressing the home key it goes to a screen I've never previously seen with yellow text stating "UPLOAD to pc". Clearly the phone has a problem with the SHP_APP file and the Windows system it's connected to but beyond that I'm completely out of my depth. Can somebody shed some light on what is wrong with my phone and how I might go about fixing it?

Thanks in advance.