internal void FlashFFUTask(string FFUPath)
{
new Thread(() =>
{
bool Result = true;
NokiaFlashModel Phone = (NokiaFlashModel)PhoneNotifier.CurrentModel;
PhoneInfo Info = Phone.ReadPhoneInfo(false);
#region Remove bootloader changes
// If necessary remove bootloader changes
// In case the NV vars were redirected, and a stock FFU is flashed, then the IsFlashing flag will be cleared in the redirected NV vars
// And after a reboot the original NV vars are active again, but the IsFlashing flag is still set from when the bootloader was unlocked
// So we will first restore the GPT, so the original vars are active again.
// Then IsFlashing is true and the phone boots forcibly to FlashApp again.
// Then we start normal FFU flasing and at the end the IsFlashing flag is cleared in the original vars.
if (Info.FlashAppProtocolVersionMajor >= 2)
{
byte[] GPTChunk = LumiaUnlockBootloaderViewModel.GetGptChunk(Phone, 0x20000); // TODO: Get proper profile FFU and get ChunkSizeInBytes
GPT GPT = new GPT(GPTChunk);
FlashPart Part;
List <FlashPart> FlashParts = new List <FlashPart>();
Partition NvBackupPartition = GPT.GetPartition("BACKUP_BS_NV");
if (NvBackupPartition != null)
{
// This must be a left over of a half unlocked bootloader
Partition NvPartition = GPT.GetPartition("UEFI_BS_NV");
NvBackupPartition.Name = "UEFI_BS_NV";
NvBackupPartition.PartitionGuid = NvPartition.PartitionGuid;
NvBackupPartition.PartitionTypeGuid = NvPartition.PartitionTypeGuid;
GPT.Partitions.Remove(NvPartition);
GPT.Rebuild();
Part = new FlashPart();
Part.StartSector = 0;
Part.Stream = new MemoryStream(GPTChunk);
FlashParts.Add(Part);
}
bool ClearFlashingStatus = true;
// We should only clear NV if there was no backup NV to be restored and the current NV contains the SB unlock.
if ((NvBackupPartition == null) && !Info.UefiSecureBootEnabled)
{
// ClearNV
Part = new FlashPart();
Partition Target = GPT.GetPartition("UEFI_BS_NV");
Part.StartSector = (UInt32)Target.FirstSector;
Part.Stream = new MemoryStream(new byte[0x40000]);
FlashParts.Add(Part);
ClearFlashingStatus = false;
}
if (FlashParts.Count > 0)
{
ActivateSubContext(new BusyViewModel("Restoring bootloader..."));
WPinternalsStatus LastStatus = WPinternalsStatus.Undefined;
LumiaV2UnlockBootViewModel.LumiaV2CustomFlash(PhoneNotifier, FFUPath, false, false, FlashParts, true, ClearFlashingStatusAtEnd: ClearFlashingStatus,
SetWorkingStatus: (m, s, v, a, st) =>
{
if ((st == WPinternalsStatus.Scanning) || (st == WPinternalsStatus.WaitingForManualReset))
{
SetWorkingStatus(m, s, v, a, st);
}
else if ((LastStatus == WPinternalsStatus.Scanning) || (LastStatus == WPinternalsStatus.WaitingForManualReset))
{
SetWorkingStatus("Restoring bootloader...", null, null, Status: WPinternalsStatus.Flashing);
}
LastStatus = st;
},
UpdateWorkingStatus: (m, s, v, st) =>
{
if ((st == WPinternalsStatus.Scanning) || (st == WPinternalsStatus.WaitingForManualReset))
{
UpdateWorkingStatus(m, s, v, st);
}
else if ((LastStatus == WPinternalsStatus.Scanning) || (LastStatus == WPinternalsStatus.WaitingForManualReset))
{
SetWorkingStatus("Restoring bootloader...", null, null, Status: WPinternalsStatus.Flashing);
}
LastStatus = st;
}
).Wait();
if ((PhoneNotifier.CurrentInterface != PhoneInterfaces.Lumia_Bootloader) && (PhoneNotifier.CurrentInterface != PhoneInterfaces.Lumia_Flash))
{
PhoneNotifier.WaitForArrival().Wait();
}
if (PhoneNotifier.CurrentInterface == PhoneInterfaces.Lumia_Bootloader)
{
((NokiaFlashModel)PhoneNotifier.CurrentModel).SwitchToFlashAppContext();
}
}
}
#endregion
Phone = (NokiaFlashModel)PhoneNotifier.CurrentModel;
ActivateSubContext(new BusyViewModel("Initializing flash..."));
string ErrorSubMessage = null;
try
{
FFU FFU = new FFU(FFUPath);
BusyViewModel Busy = new BusyViewModel("Flashing original FFU...", MaxProgressValue: FFU.TotalChunkCount, UIContext: UIContext);
ActivateSubContext(Busy);
byte Options = 0;
if (!Info.IsBootloaderSecure)
{
Options = (byte)((FlashOptions)Options | FlashOptions.SkipSignatureCheck);
}
Phone.FlashFFU(FFU, Busy.ProgressUpdater, true, Options);
}
catch (Exception Ex)
{
LogFile.LogException(Ex);
if (Ex is WPinternalsException)
{
ErrorSubMessage = ((WPinternalsException)Ex).SubMessage;
}
Result = false;
}
if (!Result)
{
ExitFailure("Flash failed!", ErrorSubMessage);
return;
}
ExitSuccess("Flash successful!", null);
}).Start();
}
