Most of the publicly available 3DS Firmwares. They are stored in .zip files and most of them are readily packed to be used directly with sysupdater or any other 3ds updating application that uses the /updates/ way of installing the update

3DS EUR o3DS Firmwares
VersionMD5 HashFilesizeMEGAArchive.org
11.17.0-50Ed5357f47ead9fb98fb7d2522327693f8193MBDownload
11.16.0-49Eab42e913b49cb46220b886acc37cb44c193MBDownload
11.16.0-48Eb0fbd936ec66f5e01064aa040c741a19193MBDownload
11.15.0-47E370dfc7e09631e17159f6f3da402f1c6193MBDownload
11.14.0-46E6330d16d9cf4bca3ec2befa701429fc5193MBDownload
11.13.0-45E6ad64b2a72ebdbe82b11950f86cfa32b193MBDownload
11.12.0-44Ef70e91d387c3ea13de21acae00171720193MBDownload
11.11.0-43Ed22baed690464c8dc30209d3d78bd85e193MBDownload
11.10.0-43Eb62198c8e4ef5823835abee0ae52e8d3193MBDownload
11.9.0-42E2f2ec01ac368625bdd4472839521dbdb193MBDownload
11.8.0-41E2f8c83ebc4aa16b9f120e1e37b2ad255193MBDownload
11.7.0-40E3c6484ab6c336c8a028198c869a05b02193MBDownload
11.6.0-39E637fca21902821e290675eb904e0344e193MBDownload
11.5.0-38Ef71c3737f33ab38ea69f9012ad0cc512193MBDownload
11.4.0-37Ef016b142034cf9ef671472eed53c5109193MBDownload
11.3.0-36E64816a2a9b097d1286dbcde5d8f490d4193MBDownload
11.2.0-35E5a6764306b3cd2d1ae582d14cb4764ca193MBDownload
11.1.0-34E03bd8f7eb58a1514040e0043bded0613193MBDownload
11.0.0-33E8916280c32eb91f7b891537a7dd7d988193MBDownload
10.7.0-32Ebea4990b9158ee232464802f7344f040193MBDownload
10.6.0-31E8b000c3f8512b92a23adcadb385b38fc177MBDownload
10.5.0-30E9229723d86beaa724224dbf1db2c5188173MBDownload
10.4.0-29E3f5756311be03cfb34166df676e74339173MBDownload
10.3.0-28E99a993714c2cbb73a9c54f7a4360d15d173MBDownload
10.2.0-28Ecff140c0da8f779888e33b9fbc42daae173MBDownload
10.1.0-27Eb7209680f69040772dbd7642027e5cde173MBDownload
10.0.0-27E7e072dfa156d857006ffe68e5ebd7277173MBDownload
9.9.0-26E150e4c66e170883557cd1d7b19f07a45193MBDownload
9.8.0-25Ed87140acfc6206c5ff19c02517a027d0193MBDownload
9.7.0-25E3668e9ec37a385052f1f4ae01577cee6172MBDownload
9.6.0-24Eba491753178d2f997df068f115dfab3f193MBDownload
9.5.0-23E96a5daaede2dba0d58883998f0ddf5ec193MBDownload
9.5.0-22E79cbb7ce6570ecb5c882b9163b856e88192MBDownload
9.4.0-21E79cbb7ce6570ecb5c882b9163b856e88192MBDownload
9.3.0-21Ee4a7c2aabd070c25bf135409ad2d402f169MBDownload
9.2.0-20E (Without MSET,TWL,WhiteList,AGB)843051c516cb61ccafcb077733560aea177MBDownload
9.2.0-20Ecaec3e015bc065dd0ca512f219c8fc3c187MBDownload
9.0.0-20Efae41691da2ba1f33efe64aee2052b66187MBDownload
8.1.0-19E9ed9db696bb94341ad0ddc9144aa0966160MBDownload
8.1.0-18E9281fbd43c045cba7271bd6b67c8222c160MBDownload
8.0.0-18E36eddb7cc9c724af539588c073a549c6160MBDownload
7.2.0-17Eabbc8982ca632070f671943e9731a335161MBDownload
7.1.0-16E27ca6c8dbee3ef048c64378c3756d071160MBDownload
7.1.0-15Ecd561e6ba39c88bcb17277c0cb908482160MBDownload
7.1.0-14E885af9d91a0c95008f6688d096751bc4160MBDownload
7.0.0-13Efc17ad8b277e905499919bb855f243fd160MBDownload
6.4.0-12Ea8324a669c88d9f51718b9a900146a19134MBDownload
6.3.0-12E5c7c71a1e086d89211f54953c422eade134MBDownload
6.2.0-12Eec1819520e5c96027b69474e0621ae9e155MBDownload
6.1.0-11E351e910dc1001c4a07b747e661af5a31134MBDownload
5.1.0-11E2ba364b6915eabf0a49663701ee77969133MBDownload
5.0.0-11Ef1d4f0662345115d348fc2115b9de33b154MBDownload
4.5.0-10E61abc811b566764e245e8d35f903bd5b154MBDownload
4.4.0-10E5404fc2b931518599a36d7895cadf77d133MBDownload
4.3.0-10E44f48accd50196222f2e1c6e7a293182133MBDownload
4.2.0-9E8462d30dad6b46bf5ad5b67c9ed88b4d133MBDownload
4.1.0-8Ea8d80daff9105f86173ed455724df6d2133MBDownload
4.0.0-7Edaee92dcd4eabc1840977bd3a665d783133MBDownload
3.0.0-6E1f2502acfe69314a6a96fb65ca2c789a133MBDownload
2.1.0-3E9590ea515c3483d9d0a07ec643e76db9114MBDownload
2.0.0-2E5eaa3bad4ffd8076a4e55740048ac17880MBDownload
1.1.0-1E(CFA)96674bba80871608048fc3d60e2d3c674.9MBDownload
1.0.0-1E(CFA)9f11c91be3a695587ad8d8af38c0d2064.9MBDownload
1.0.0-0E3495f4c8d8518f5a3d86f0ad77a632c5114MBDownload
3DS EUR n3DS Firmwares
VersionMD5 HashFilesizeMEGAArchive.org
11.17.0-50Eebef8f0f53d82b5453225252a83f0f0b156MBDownload
11.16.0-49E315deb0c30f3c5061ed0bf9b38416f3e156MBDownload
11.16.0-48E82ae8c5adb9f87f1a07350fd0be4b420156MBDownload
11.15.0-47E961aae7dc978edea948b59f40b629f27156MBDownload
11.14.0-46E3f79511d5f116933ae8469ebe001ff7b156MBDownload
11.13.0-45E