[Xperia Z5 Q&A, Help & Troubleshooting] sceryavuz:
XperiFirm 4.9.1 gives the all links. Try that, you can download all links with Internet Download Manager.

Copy all links into a notepad file, then download all manually or IDM queue..

These are the links, you have to merge all file with XperiFirm 4.9.1

https://software.sonymobile.com/ess-distribution/public/api/file/9488763/chunk/0?chunkstart=0&chunkend=117201&password=b26299288eb3a11f
https://software.sonymobile.com/ess-distribution/public/api/file/11007763/chunk/0?chunkstart=0&chunkend=1140660&password=d75d9efba9369769
https://software.sonymobile.com/ess-distribution/public/api/file/11007839/chunk/0?chunkstart=0&chunkend=49999999&password=64dd5e1bdc66c82c
https://software.sonymobile.com/ess-distribution/public/api/file/11007839/chunk/1?chunkstart=50000000&chunkend=99999999&password=64dd5e1bdc66c82c
https://software.sonymobile.com/ess-distribution/public/api/file/11007839/chunk/2?chunkstart=100000000&chunkend=136032846&password=64dd5e1bdc66c82c
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/0?chunkstart=0&chunkend=49999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/1?chunkstart=50000000&chunkend=99999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/2?chunkstart=100000000&chunkend=149999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/3?chunkstart=150000000&chunkend=199999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/4?chunkstart=200000000&chunkend=249999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/5?chunkstart=250000000&chunkend=299999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/6?chunkstart=300000000&chunkend=349999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/7?chunkstart=350000000&chunkend=399999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/8?chunkstart=400000000&chunkend=449999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/9?chunkstart=450000000&chunkend=499999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/10?chunkstart=500000000&chunkend=549999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/11?chunkstart=550000000&chunkend=599999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/12?chunkstart=600000000&chunkend=649999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/13?chunkstart=650000000&chunkend=699999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/14?chunkstart=700000000&chunkend=749999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/15?chunkstart=750000000&chunkend=799999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/16?chunkstart=800000000&chunkend=849999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/17?chunkstart=850000000&chunkend=899999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/18?chunkstart=900000000&chunkend=949999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/19?chunkstart=950000000&chunkend=999999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/20?chunkstart=1000000000&chunkend=1049999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/21?chunkstart=1050000000&chunkend=1099999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/22?chunkstart=1100000000&chunkend=1149999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/23?chunkstart=1150000000&chunkend=1199999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/24?chunkstart=1200000000&chunkend=1249999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/25?chunkstart=1250000000&chunkend=1299999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/26?chunkstart=1300000000&chunkend=1349999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/27?chunkstart=1350000000&chunkend=1399999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/28?chunkstart=1400000000&chunkend=1449999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/29?chunkstart=1450000000&chunkend=1499999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/30?chunkstart=1500000000&chunkend=1549999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/31?chunkstart=1550000000&chunkend=1599999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/32?chunkstart=1600000000&chunkend=1649999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/33?chunkstart=1650000000&chunkend=1699999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/34?chunkstart=1700000000&chunkend=1749999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/35?chunkstart=1750000000&chunkend=1799999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/36?chunkstart=1800000000&chunkend=1849999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/37?chunkstart=1850000000&chunkend=1899999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/38?chunkstart=1900000000&chunkend=1949999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/39?chunkstart=1950000000&chunkend=1999999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/40?chunkstart=2000000000&chunkend=2049999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/41?chunkstart=2050000000&chunkend=2099999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/42?chunkstart=2100000000&chunkend=2149999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/43?chunkstart=2150000000&chunkend=2199999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/44?chunkstart=2200000000&chunkend=2249999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/45?chunkstart=2250000000&chunkend=2299999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/46?chunkstart=2300000000&chunkend=2349999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/47?chunkstart=2350000000&chunkend=2399999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/48?chunkstart=2400000000&chunkend=2449999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/49?chunkstart=2450000000&chunkend=2499999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/50?chunkstart=2500000000&chunkend=2549999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/51?chunkstart=2550000000&chunkend=2599999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/52?chunkstart=2600000000&chunkend=2649999999&password=d6e462f88dc78082
https://software.sonymobile.com/ess-distribution/public/api/file/11007759/chunk/53?chunkstart=2650000000&chunkend=2699227527&password=d6e462f88dc78082