#! /usr/bin/env python3 import argparse import usb.core import usb.util import array import sys import hashlib import csv import urllib.request from datetime import datetime from Crypto.Hash import SHA512 from progressbar.bar import ProgressBar class PrecursorUsb: def __init__(self, dev): self.dev = dev self.RDSR = 0x05 self.RDSCUR = 0x2B self.RDID = 0x9F self.WREN = 0x06 self.WRDI = 0x04 self.SE4B = 0x21 self.BE4B = 0xDC self.PP4B = 0x12 self.registers = {} self.regions = {} self.gitrev = '' def register(self, name): return int(self.registers[name], 0) def halt(self): if 'vexriscv_debug' in self.regions: self.poke(int(self.regions['vexriscv_debug'][0], 0), 0x00020000) elif 'reboot_cpu_hold_reset' in self.registers: self.poke(self.register('reboot_cpu_hold_reset'), 1) else: print("Can't find reset CSR. Try updating to the latest version of this program") def unhalt(self): if 'vexriscv_debug' in self.regions: self.poke(int(self.regions['vexriscv_debug'][0], 0), 0x02000000) elif 'reboot_cpu_hold_reset' in self.registers: self.poke(self.register('reboot_cpu_hold_reset'), 0) else: print("Can't find reset CSR. Try updating to the latest version of this program") def peek(self, addr, display=False): _dummy_s = '\x00'.encode('utf-8') data = array.array('B', _dummy_s * 4) numread = self.dev.ctrl_transfer(bmRequestType=(0x80 | 0x43), bRequest=0, wValue=(addr & 0xffff), wIndex=((addr >> 16) & 0xffff), data_or_wLength=data, timeout=500) read_data = int.from_bytes(data.tobytes(), byteorder='little', signed=False) if display == True: print("0x{:08x}".format(read_data)) return read_data def poke(self, addr, wdata, check=False, display=False): if check == True: _dummy_s = '\x00'.encode('utf-8') data = array.array('B', _dummy_s * 4) numread = self.dev.ctrl_transfer(bmRequestType=(0x80 | 0x43), bRequest=0, wValue=(addr & 0xffff), wIndex=((addr >> 16) & 0xffff), data_or_wLength=data, timeout=500) read_data = int.from_bytes(data.tobytes(), byteorder='little', signed=False) print("before poke: 0x{:08x}".format(read_data)) data = array.array('B', wdata.to_bytes(4, 'little')) numwritten = self.dev.ctrl_transfer(bmRequestType=(0x00 | 0x43), bRequest=0, wValue=(addr & 0xffff), wIndex=((addr >> 16) & 0xffff), data_or_wLength=data, timeout=500) if check == True: _dummy_s = '\x00'.encode('utf-8') data = array.array('B', _dummy_s * 4) numread = self.dev.ctrl_transfer(bmRequestType=(0x80 | 0x43), bRequest=0, wValue=(addr & 0xffff), wIndex=((addr >> 16) & 0xffff), data_or_wLength=data, timeout=500) read_data = int.from_bytes(data.tobytes(), byteorder='little', signed=False) print("after poke: 0x{:08x}".format(read_data)) if display == True: print("wrote 0x{:08x} to 0x{:08x}".format(wdata, addr)) def burst_read(self, addr, len): _dummy_s = '\x00'.encode('utf-8') maxlen = 4096 ret = bytearray() packet_count = len // maxlen if (len % maxlen) != 0: packet_count += 1 for pkt_num in range(packet_count): cur_addr = addr + pkt_num * maxlen if pkt_num == packet_count - 1: if len % maxlen != 0: bufsize = len % maxlen else: bufsize = maxlen else: bufsize = maxlen data = array.array('B', _dummy_s * bufsize) numread = self.dev.ctrl_transfer(bmRequestType=(0x80 | 0x43), bRequest=0, wValue=(cur_addr & 0xffff), wIndex=((cur_addr >> 16) & 0xffff), data_or_wLength=data, timeout=500) if numread != bufsize: print("Burst read error: {} bytes requested, {} bytes read at 0x{:08x}".format(bufsize, numread, cur_addr)) exit(1) ret = ret + data return ret def burst_write(self, addr, data): if len(data) == 0: return # the actual "addr" doesn't matter for a burst_write, because it's specified # as an argument to the flash_pp4b command. We lock out access to the base of # SPINOR because it's part of the gateware, so, we pick a "safe" address to # write to instead. The page write responder will aggregate any write data # to anywhere in the SPINOR address range. writebuf_addr = 0x2098_0000 # the current start address of the kernel, for example maxlen = 4096 packet_count = len(data) // maxlen if (len(data) % maxlen) != 0: packet_count += 1 for pkt_num in range(packet_count): cur_addr = addr + pkt_num * maxlen if pkt_num == packet_count - 1: if len(data) % maxlen != 0: bufsize = len(data) % maxlen else: bufsize = maxlen else: bufsize = maxlen wdata = array.array('B', data[(pkt_num * maxlen):(pkt_num * maxlen) + bufsize]) numwritten = self.dev.ctrl_transfer(bmRequestType=(0x00 | 0x43), bRequest=0, # note use of writebuf_addr instead of cur_addr -> see comment above about the quirk of write addressing wValue=(writebuf_addr & 0xffff), wIndex=((writebuf_addr >> 16) & 0xffff), data_or_wLength=wdata, timeout=500) if numwritten != bufsize: print("Burst write error: {} bytes requested, {} bytes written at 0x{:08x}".format(bufsize, numwritten, cur_addr)) exit(1) def ping_wdt(self): self.poke(self.register('wdt_watchdog'), 1, display=False) self.poke(self.register('wdt_watchdog'), 1, display=False) def spinor_command_value(self, exec=0, lock_reads=0, cmd_code=0, dummy_cycles=0, data_words=0, has_arg=0): return ((exec & 1) << 1 | (lock_reads & 1) << 24 | (cmd_code & 0xff) << 2 | (dummy_cycles & 0x1f) << 11 | (data_words & 0xff) << 16 | (has_arg & 1) << 10 ) def flash_rdsr(self, lock_reads): self.poke(self.register('spinor_cmd_arg'), 0) self.poke(self.register('spinor_command'), self.spinor_command_value(exec=1, lock_reads=lock_reads, cmd_code=self.RDSR, dummy_cycles=4, data_words=1, has_arg=1) ) return self.peek(self.register('spinor_cmd_rbk_data'), display=False) def flash_rdscur(self): self.poke(self.register('spinor_cmd_arg'), 0) self.poke(self.register('spinor_command'), self.spinor_command_value(exec=1, lock_reads=1, cmd_code=self.RDSCUR, dummy_cycles=4, data_words=1, has_arg=1) ) return self.peek(self.register('spinor_cmd_rbk_data'), display=False) def flash_rdid(self, offset): self.poke(self.register('spinor_cmd_arg'), 0) self.poke(self.register('spinor_command'), self.spinor_command_value(exec=1, cmd_code=self.RDID, dummy_cycles=4, data_words=offset, has_arg=1) ) return self.peek(self.register('spinor_cmd_rbk_data'), display=False) def flash_wren(self): self.poke(self.register('spinor_cmd_arg'), 0) self.poke(self.register('spinor_command'), self.spinor_command_value(exec=1, lock_reads=1, cmd_code=self.WREN) ) def flash_wrdi(self): self.poke(self.register('spinor_cmd_arg'), 0) self.poke(self.register('spinor_command'), self.spinor_command_value(exec=1, lock_reads=1, cmd_code=self.WRDI) ) def flash_se4b(self, sector_address): self.poke(self.register('spinor_cmd_arg'), sector_address) self.poke(self.register('spinor_command'), self.spinor_command_value(exec=1, lock_reads=1, cmd_code=self.SE4B, has_arg=1) ) def flash_be4b(self, block_address): self.poke(self.register('spinor_cmd_arg'), block_address) self.poke(self.register('spinor_command'), self.spinor_command_value(exec=1, lock_reads=1, cmd_code=self.BE4B, has_arg=1) ) def flash_pp4b(self, address, data_bytes): self.poke(self.register('spinor_cmd_arg'), address) self.poke(self.register('spinor_command'), self.spinor_command_value(exec=1, lock_reads=1, cmd_code=self.PP4B, has_arg=1, data_words=(data_bytes//2)) ) def load_csrs(self, fname=None): LOC_CSRCSV = 0x20277000 # this address shouldn't change because it's how we figure out our version number # CSR extraction: # dd if=soc_csr.bin of=csr_data_0.9.6.bin skip=2524 count=32 bs=1024 if fname == None: csr_data = self.burst_read(LOC_CSRCSV, 0x8000) else: with open(fname, "rb") as f: csr_data = f.read(0x8000) hasher = hashlib.sha512() hasher.update(csr_data[:0x7FC0]) digest = hasher.digest() if digest != csr_data[0x7fc0:]: print("Could not find a valid csr.csv descriptor on the device, aborting!") exit(1) csr_len = int.from_bytes(csr_data[:4], 'little') csr_extracted = csr_data[4:4+csr_len] decoded = csr_extracted.decode('utf-8') # strip comments stripped = [] for line in decoded.split('\n'): if line.startswith('#') == False: stripped.append(line) # create database csr_db = csv.reader(stripped) for row in csr_db: if len(row) > 1: if 'csr_register' in row[0]: self.registers[row[1]] = row[2] if 'memory_region' in row[0]: self.regions[row[1]] = [row[2], row[3]] if 'git_rev' in row[0]: self.gitrev = row[1] print("Using SoC {} registers".format(self.gitrev)) def erase_region(self, addr, length): # ID code check code = self.flash_rdid(1) print("ID code bytes 1-2: 0x{:08x}".format(code)) if code != 0x8080c2c2: print("ID code mismatch") exit(1) code = self.flash_rdid(2) print("ID code bytes 2-3: 0x{:08x}".format(code)) if code != 0x3b3b8080: print("ID code mismatch") exit(1) # block erase progress = ProgressBar(min_value=0, max_value=length, prefix='Erasing ').start() erased = 0 while erased < length: self.ping_wdt() if (length - erased >= 65536) and ((addr & 0xFFFF) == 0): blocksize = 65536 else: blocksize = 4096 while True: self.flash_wren() status = self.flash_rdsr(1) if status & 0x02 != 0: break if blocksize == 4096: self.flash_se4b(addr + erased) else: self.flash_be4b(addr + erased) erased += blocksize while (self.flash_rdsr(1) & 0x01) != 0: pass result = self.flash_rdscur() if result & 0x60 != 0: print("E_FAIL/P_FAIL set on erase, programming may fail, but trying anyways...") if self.flash_rdsr(1) & 0x02 != 0: self.flash_wrdi() while (self.flash_rdsr(1) & 0x02) != 0: pass if erased < length: progress.update(erased) progress.finish() print("Erase finished") # addr is relative to the base of FLASH (not absolute) def flash_program(self, addr, data, verify=True): flash_region = int(self.regions['spiflash'][0], 0) flash_len = int(self.regions['spiflash'][1], 0) if (addr + len(data) > flash_len): print("Write data out of bounds! Aborting.") exit(1) # ID code check code = self.flash_rdid(1) print("ID code bytes 1-2: 0x{:08x}".format(code)) if code != 0x8080c2c2: print("ID code mismatch") exit(1) code = self.flash_rdid(2) print("ID code bytes 2-3: 0x{:08x}".format(code)) if code != 0x3b3b8080: print("ID code mismatch") exit(1) # block erase progress = ProgressBar(min_value=0, max_value=len(data), prefix='Erasing ').start() erased = 0 while erased < len(data): self.ping_wdt() if (len(data) - erased >= 65536) and ((addr & 0xFFFF) == 0): blocksize = 65536 else: blocksize = 4096 while True: self.flash_wren() status = self.flash_rdsr(1) if status & 0x02 != 0: break if blocksize == 4096: self.flash_se4b(addr + erased) else: self.flash_be4b(addr + erased) erased += blocksize while (self.flash_rdsr(1) & 0x01) != 0: pass result = self.flash_rdscur() if result & 0x60 != 0: print("E_FAIL/P_FAIL set on erase, programming may fail, but trying anyways...") if self.flash_rdsr(1) & 0x02 != 0: self.flash_wrdi() while (self.flash_rdsr(1) & 0x02) != 0: pass if erased < len(data): progress.update(erased) progress.finish() print("Erase finished") # program # pad out to the nearest word length if len(data) % 4 != 0: data += bytearray([0xff] * (4 - (len(data) % 4))) written = 0 progress = ProgressBar(min_value=0, max_value=len(data), prefix='Writing ').start() while written < len(data): self.ping_wdt() if len(data) - written > 256: chunklen = 256 else: chunklen = len(data) - written while True: self.flash_wren() status = self.flash_rdsr(1) if status & 0x02 != 0: break self.burst_write(self.register('spinor_wdata'), data[written:(written+chunklen)]) self.flash_pp4b(addr + written, chunklen) written += chunklen if written < len(data): progress.update(written) progress.finish() print("Write finished") if self.flash_rdsr(1) & 0x02 != 0: self.flash_wrdi() while (self.flash_rdsr(1) & 0x02) != 0: pass # dummy reads to clear the "read lock" bit self.flash_rdsr(0) # verify self.ping_wdt() if verify: print("Performing readback for verification...") self.ping_wdt() rbk_data = self.burst_read(addr + flash_region, len(data)) if rbk_data != data: errs = 0 err_thresh = 64 for i in range(0, len(rbk_data)): if rbk_data[i] != data[i]: if errs < err_thresh: print("Error at 0x{:x}: {:x}->{:x}".format(i, data[i], rbk_data[i])) errs += 1 if errs == err_thresh: print("Too many errors, stopping print...") print("Errors were found in verification, programming failed") print("Total byte errors: {}".format(errs)) exit(1) else: print("Verification passed.") else: print("Skipped verification at user request") self.ping_wdt() LANGUAGE = { 0: "en", 1: "en-tts", 2: "ja", 3: "zh", } def bytes_to_semverstr(b): maj = int.from_bytes(b[0:2], 'little') min = int.from_bytes(b[2:4], 'little') rev = int.from_bytes(b[4:6], 'little') extra = int.from_bytes(b[6:8], 'little') has_commit = int.from_bytes(b[12:16], 'little') if has_commit != 0: commit = int.from_bytes(b[8:12], 'little') return "v{}.{}.{}-{}-g{:x}".format(maj, min, rev, extra, commit) else: return "v{}.{}.{}-{}".format(maj, min, rev, extra) class SemVer: def __init__(self, b): self.maj = int.from_bytes(b[0:2], 'little') self.min = int.from_bytes(b[2:4], 'little') self.rev = int.from_bytes(b[4:6], 'little') self.extra = int.from_bytes(b[6:8], 'little') self.has_commit = int.from_bytes(b[12:16], 'little') # note: very old kernel will return a version of 0.0.0 if self.has_commit != 0: self.commit = int.from_bytes(b[8:12], 'little') def ord(self): # returns a number that you can use to compare if versions are bigger or smaller than each other return self.maj << 48 | self.min << 32 | self.rev << 16 | self.extra def as_str(self): if self.has_commit == 0: return "v{}.{}.{}-{}".format(self.maj, self.min, self.rev, self.extra) else: return "v{}.{}.{}-{}-g{:x}".format(self.maj, self.min, self.rev, self.extra, self.commit) def check_header(backup): checksums = [] i = 0 backup_version = int.from_bytes(backup[i:i+4], 'little') print("Backup protocol version: 0x{:08x}".format(backup_version)) if backup_version != 0x00010000 and backup_version != 0x00010001: print("Backup protocol version is not correct.") return (False, checksums) i += 4 print("Xous version: {}".format(bytes_to_semverstr(backup[i:i+16]))) backup_xous_ver = SemVer(backup[i:i+16]) i += 16 print("SOC version: {}".format(bytes_to_semverstr(backup[i:i+16]))) i += 16 print("EC version: {}".format(bytes_to_semverstr(backup[i:i+16]))) i += 16 print("WF200 version: {}".format(bytes_to_semverstr(backup[i:i+16]))) i += 16 i += 4 # padding because align=8 ts = int.from_bytes(backup[i:i+8], 'little') / 1000 print("Timestamp: {} / {}".format(ts, datetime.utcfromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S'))) if (datetime.utcfromtimestamp(ts) - datetime.now()).total_seconds() > 600: print("WARNING: Backup timestamp is in the future. Is the RTC and timezone set correctly on the device?") # return False # non-fatal, because we have hash checks now if datetime.utcfromtimestamp(ts).year < 2021: print("WARNING: Backup timestamp is from before 2021. Is the RTC and timezone set correctly on the device?") # return False i += 8 lcode = int.from_bytes(backup[i:i+4], 'little') print("Language code: {}".format(lcode)) if lcode < len(LANGUAGE): language = LANGUAGE[lcode] else: print("Language code is incorrect.") return (False, checksums) i += 4 print("Keyboard layout code: {}".format(int.from_bytes(backup[i:i+4], 'little'))) i += 4 print("DNA: 0x{:x}".format(int.from_bytes(backup[i:i+8], 'little'))) i += 8 checksum_region_len = int.from_bytes(backup[i:i+4], 'little') * 4096 print("Checksum region length: 0x{:x}".format(checksum_region_len)) i += 4 total_checksums = int.from_bytes(backup[i:i+4], 'little') print("Number of checksum blocks: {}".format(total_checksums)) # if this is 0, checksumming was skipped i += 4 header_total_size = int.from_bytes(backup[i:i+4], 'little') print("Header total length in bytes: {}".format(header_total_size)) i += 4 i += 36 # reserved if backup_version == 0x10001: print("Checksums found in backup image, checking...") PT_HEADER_LEN = 4 + 16 * 4 + 4 + 8 + 64 + 4 + 4 NONCE_LEN = 12 CT_LEN = PT_HEADER_LEN + 1024 + 64 TAG_LEN = 16 COMMIT_NONCE_LEN = 32 COMMIT_LEN = 32 CHECKSUM_LEN = 32 PADDING = 4 checksum_loc = PT_HEADER_LEN + NONCE_LEN + CT_LEN + TAG_LEN + COMMIT_NONCE_LEN + COMMIT_LEN + PADDING check_region = backup[:checksum_loc] checksum = backup[checksum_loc:checksum_loc + CHECKSUM_LEN] hasher = SHA512.new(truncate="256") hasher.update(check_region) computed_checksum = hasher.digest() if computed_checksum != checksum: print("Header failed hash integrity check!") return (False, checksums) # Checksums are aligned to the end of the first 4096-byte block if header_total_size != len(backup): print("Header length does not match expected length") return (False, checksums) raw_checksums = backup[-(total_checksums * 16):] checksums = [raw_checksums[i:i+16] for i in range(0, len(raw_checksums), 16)] op = int.from_bytes(backup[i:i+4], 'little') print("Opcode (should be 1): {}".format(op)) if op != 1: print("Opcode is incorrect.") return (False, checksums) print("Backup header passes sanity check!") return (True, checksums) def auto_int(x): return int(x, 0) def main(): parser = argparse.ArgumentParser(description="Update/upload to a Precursor device running Xous 0.8/0.9") parser.add_argument( "--config", required=False, help="Print the descriptor", action='store_true' ) parser.add_argument( "--override-csr", required=False, help="CSR file to use instead of CSR values stored with the image. Used to recover in case of partial update of soc_csr.bin", type=str, ) parser.add_argument( "--peek", required=False, help="Inspect an address", type=auto_int, metavar=('ADDR') ) parser.add_argument( "--output", help="Output file name. Defaults to ./backup_.pddb", type=str, default=None ) args = parser.parse_args() if args.output is None: ofile = "backup_{}.pddb".format(datetime.now().strftime('%Y%m%d_%H%M%S')) else: ofile = args.output dev = usb.core.find(idProduct=0x5bf0, idVendor=0x1209) if dev is None: raise ValueError('Precursor device not found; be sure that the debug core is enabled') dev.set_configuration() if args.config: cfg = dev.get_active_configuration() print(cfg) pc_usb = PrecursorUsb(dev) pc_usb.load_csrs(args.override_csr) # prime the CSR values if "v0.8" in pc_usb.gitrev: locs = { "LOC_SOC" : [0x0000_0000, "soc_csr.bin"], "LOC_STAGING": [0x0028_0000, "pass"], "LOC_LOADER" : [0x0050_0000, "loader.bin"], "LOC_KERNEL" : [0x0098_0000, "xous.img"], "LOC_WF200" : [0x07F8_0000, "pass"], "LOC_EC" : [0x07FC_E000, "pass"], "LOC_AUDIO" : [0x0634_0000, "short_8khz.wav"], "LEN_AUDIO" : [0x01C4_0000, "pass"], "LOC_PDDB" : [0x0100_0000, "pass"], } elif "v0.9" in pc_usb.gitrev: locs = { "LOC_SOC" : [0x0000_0000, "soc_csr.bin"], "LOC_STAGING": [0x0028_0000, "pass"], "LOC_LOADER" : [0x0050_0000, "loader.bin"], "LOC_KERNEL" : [0x0098_0000, "xous.img"], "LOC_WF200" : [0x07F8_0000, "pass"], "LOC_EC" : [0x07FC_E000, "pass"], "LOC_AUDIO" : [0x0634_0000, "short_8khz.wav"], "LEN_AUDIO" : [0x01C4_0000, "pass"], "LOC_PDDB" : [0x01D8_0000, "pass"], } elif args.force == True: # try the v0.9 offsets locs = { "LOC_SOC" : [0x00000000, "soc_csr.bin"], "LOC_STAGING": [0x00280000, "pass"], "LOC_LOADER" : [0x00500000, "loader.bin"], "LOC_KERNEL" : [0x00980000, "xous.img"], "LOC_WF200" : [0x07F80000, "pass"], "LOC_EC" : [0x07FCE000, "pass"], "LOC_AUDIO" : [0x06340000, "short_8khz.wav"], "LEN_AUDIO" : [0x01C40000, "pass"], "LOC_PDDB" : [0x01D80000, "pass"], } else: print("SoC is from an unknown rev '{}', use --force to continue anyways with v0.9 firmware offsets".format(pc_usb.load_csrs())) exit(1) pc_usb.ping_wdt() print("Halting CPU.") pc_usb.halt() header_checked = False checksum_error = False flash_region = int(pc_usb.regions['spiflash'][0], 0) if args.peek: pc_usb.peek(args.peek + flash_region, display=True) else: with open(ofile, "wb") as file: checksum = [] start_addr = locs['LOC_PDDB'][0] - 0x1000 total_length = locs['LOC_WF200'][0] - locs['LOC_PDDB'][0] + 0x1000 progress = ProgressBar(min_value=0, max_value=total_length, prefix='Backing up ').start() block_size = 4096 amount_read = 0 check_block = bytearray(1024*1024) # the size of this is encoded in the header, but, it doesn't change so we hard code it here check_block_num = 0 check_block_offset = 0 while amount_read < total_length: if amount_read % (block_size * 16) == 0: pc_usb.ping_wdt() backup = pc_usb.burst_read(start_addr + amount_read + flash_region, block_size) # block check logic if len(checksum) > 0: # this check inherently skips the header block, while also suppressing the check if no checksums are provided check_block[check_block_offset:check_block_offset + block_size] = backup check_block_offset += block_size if check_block_offset >= len(check_block): hasher = SHA512.new(truncate="256") #print("hashing block of {} len".format(len(check_block))) #print("start: {}".format(check_block[:64].hex())) #print("end: {}".format(check_block[-64:].hex())) hasher.update(check_block) sum = hasher.digest() if sum[:16] != checksum[check_block_num]: print("Calculated: {}\nExpected: {}".format(sum[:16].hex(), bytes(checksum[check_block_num]).hex())) print("Bad checksum on block {} at offset 0x{:x}. Re-run backup!".format(check_block_num, amount_read - block_size)) # TODO: automatic retry of the download. However, for now, this condition *should* be very rare # (not even sure how to trigger it for testing) that we just print the error message for now. checksum_error = True else: # print("Block {}/{} downloaded OK".format(check_block_num + 1, len(checksum))) pass check_block_offset = 0 check_block_num += 1 # header check - putting it after the above skips incorporating the header data into check_block if header_checked is False: (header_ok, checksum) = check_header(backup) if header_ok: header_checked = True else: break amount_read += block_size if amount_read < total_length: progress.update(amount_read) file.write(backup) progress.finish() file.close() print("Resuming CPU.") pc_usb.unhalt() if checksum_error: print("Link errors detected while downloading the backup. Data is likely corrupted, please try again!") # Either that, or possibly the PDDB got into an inconsistent state after preparing the backup! print("Resetting SOC...") try: pc_usb.poke(pc_usb.register('reboot_soc_reset'), 0xac, display=False) except usb.core.USBError: pass # we expect an error because we reset the SOC and that includes the USB core if header_checked is False: print("--- BACKUP FAILED ---") print("Backup header did not pass basic integrity tests. Did you run 'Prepare Backups' on the device? Is the device time and timezone set correctly?") # print("If you need to run more commands, please unplug and re-plug your device in, as the Precursor USB core was just reset") if __name__ == "__main__": main() exit(0)