# Post your technical support queries here **URL:** \ **Category:** Technical Support\ **Created:** [November 14, 2023, 11:07am UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044 "2023-11-14T11:07:06Z")\ **Posts on this page:** 20\ **Page:** 18
**Author:** ![conradoplg](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/conradoplg/32/42878_2.png) [@conradoplg](https://forum.zcashcommunity.com/u/conradoplg)\ **Post date:** [December 8, 2025, 6:09pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/367 "2025-12-08T18:09:19Z")
You need a full node (should use zebrad, since zcashd will be deprecated), or will need to rely on a third-party lightwallet server which may not be acceptable. ---
**Author:** ![CalebB](https://avatars.discourse-cdn.com/v4/letter/c/2acd7d/32.png) [@CalebB](https://forum.zcashcommunity.com/u/CalebB)\ **Post date:** [December 9, 2025, 1:48pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/368 "2025-12-09T13:48:24Z")
i dont have the memory to run zcashd but have many coinbase utxos or that need shielded as well as utxos consolidated and sent to my shielded address. Can I ask someone in the forum to do this for me if i pay them or is that against the rules? thank you ---
**Author:** ![Shawn](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/shawn/32/187_2.png) [@Shawn](https://forum.zcashcommunity.com/u/Shawn)\ **Post date:** [March 16, 2026, 10:37pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/369 "2026-03-16T22:37:40Z")
34 posts were split to a new topic: [Nearlybrokes Sprout ZEC recovery thread](https://forum.zcashcommunity.com/t/nearlybrokes-sprout-zec-recovery-thread/54996) ---
**Author:** ![Anzus\_GemWallet](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/anzus_gemwallet/32/40899_2.png) [@Anzus\_GemWallet](https://forum.zcashcommunity.com/u/Anzus_GemWallet)\ **Post date:** [December 10, 2025, 1:45pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/374 "2025-12-10T13:45:06Z")
We are still waiting on the update. Hopefully Gem Wallet gets added soon. Thanks in advance. ---
**Author:** ![azulatrades](https://avatars.discourse-cdn.com/v4/letter/a/dec6dc/32.png) [@azulatrades](https://forum.zcashcommunity.com/u/azulatrades)\ **Post date:** [December 11, 2025, 10:35am UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/378 "2025-12-11T10:35:43Z")
I lost my seed phrase because my phone was stolen, when I backed up my new phone it signed me out but it says it still recognizes that there is data from my old wallet (it pops up when I click create new wallet) is there any way for me to recover my old data? ---
**Author:** ![Autotunafish](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/autotunafish/32/7827_2.png) [@Autotunafish](https://forum.zcashcommunity.com/u/Autotunafish)\ **Post date:** [December 11, 2025, 12:04pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/379 "2025-12-11T12:04:33Z")
Scanning zcashd can take days, potentially. Unsure whether your wallet can be recovered. If the new wallet opens up to the same old one because of your phone backup then yes, but otherwise without direct access to the seed, likely not. What wallet is this? ---
**Author:** ![AndyC](https://avatars.discourse-cdn.com/v4/letter/a/bc79bd/32.png) [@AndyC](https://forum.zcashcommunity.com/u/AndyC)\ **Post date:** [December 12, 2025, 10:20pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/382 "2025-12-12T22:20:29Z")
I downloaded Zkool and imported Zcash from my Ledger Nano, did a test send on Nov 19 and it went through fine. Today I tried to send some Zcash to my new Trezor wallet after updating my Ledger Wallet and installing the newest Zkool. The transaction failed with the following error: Transaction ID: failed to validate tx: WtxId(“private”), error: transaction did not pass consensus validation: Downcast from BoxError to redjubjub::Error failed: downcast to known transaction error type failed, original error: ScriptInvalid Anyone encountered the same issue? Any idea how to resolve this? Thanks for any help you can provide. ---
**Author:** ![dismad](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/dismad/32/18432_2.png) [@dismad](https://forum.zcashcommunity.com/u/dismad)\ **Post date:** [December 13, 2025, 12:38am UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/383 "2025-12-13T00:38:28Z")
Make sure you download the latest version of Zkool that has NU 6.1 support: > **[Release zkool: v6.8.0 · hhanh00/zkool2](https://github.com/hhanh00/zkool2/releases/tag/zkool-v6.8.0)** > > 6.8.0 (2025-12-03) > Features > > derive Ledger sapling from seed (#696) (14a72f7) > > Bug Fixes > > http over tor (#688) (cec2d29) > show warning when using ledger because of NU6.1 (#691) (8b27cf3) ---
**Author:** ![AndyC](https://avatars.discourse-cdn.com/v4/letter/a/bc79bd/32.png) [@AndyC](https://forum.zcashcommunity.com/u/AndyC)\ **Post date:** [December 13, 2025, 2:42am UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/385 "2025-12-13T02:42:18Z")
Thanks but the Zkool I’m using is the latest version v6.8.0. ---
**Author:** ![hanh](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/hanh/32/27853_2.png) [@hanh](https://forum.zcashcommunity.com/u/hanh)\ **Post date:** [December 13, 2025, 3:33am UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/386 "2025-12-13T03:33:51Z")
The zondax shielded app is no longer maintained by zondax. I have pushed a PR to the Ledger repo but still need some time to complete the process. ---
**Author:** ![AndyC](https://avatars.discourse-cdn.com/v4/letter/a/bc79bd/32.png) [@AndyC](https://forum.zcashcommunity.com/u/AndyC)\ **Post date:** [December 14, 2025, 5:38am UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/388 "2025-12-14T05:38:50Z")
Thank you! Is it related to the following error I’m experiencing? Transaction ID: failed to validate tx: WtxId(“private”), error: transaction did not pass consensus validation: Downcast from BoxError to redjubjub::Error failed: downcast to known transaction error type failed, original error: ScriptInvalid When do you think the updated Zcash shielded app for Ledger will be available to install? ---
**Author:** ![hanh](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/hanh/32/27853_2.png) [@hanh](https://forum.zcashcommunity.com/u/hanh)\ **Post date:** [December 14, 2025, 6:41am UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/389 "2025-12-14T06:41:46Z")
No idea… I don’t work for Ledger. This is all done on my free time too… ---
**Author:** ![purplefish](https://avatars.discourse-cdn.com/v4/letter/p/bbce88/32.png) [@purplefish](https://forum.zcashcommunity.com/u/purplefish)\ **Post date:** [December 18, 2025, 6:41pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/391 "2025-12-18T18:41:09Z")
Hello, i’m hoping to get some guidance on wallet library usage… I’m presently using the zcashd internal wallet, but have hit a snag: There doesn’t seem to be any kind of note management / coin control offered, it seems to be managed automatically by the `z_sendmany` method. I have attempted `CreateRawTransaction`, however it doesn’t seem to accept orchard/sapling/unified recipient addresses, whereas `SignRawTransaction`doesn’t seem to accept an orchard note as input (not able to sign v5 txn without knowing all inputs). I also looked into the zebra wallet, but it seems to be an (incomplete) copy of the zcashd wallet, according to the openapi spec. i’m ultimately looking for a cli/rpc wallet/library that allows complete utxo and note management aka coin control. Help would be appreciated, thanks. ---
**Author:** ![dismad](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/dismad/32/18432_2.png) [@dismad](https://forum.zcashcommunity.com/u/dismad)\ **Post date:** [December 18, 2025, 7:08pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/392 "2025-12-18T19:08:23Z")
I created a demo for creating multisig transactions using `createrawtransaction` that may be helpful: [![](https://global.discourse-cdn.com/zcash/original/3X/3/2/32f4133767ed7f4825d31901a306210e7fa2190e.jpeg "Using Transparent MutliSig with Zcash") ](https://www.youtube.com/watch?v=ZUCvj6dNOJA) demo scripts: [here](https://github.com/ZecHub/zechub/tree/main/site/guides/multisigdemo) Keep in mind `zcashd` is being deprecated and these scripts are for educational purposes only. * * * # Options ## Zallet Use the new Z3 stack with Zallet. Alpha3: [here](https://github.com/zcash/wallet/releases/tag/v0.1.0-alpha.3) Keep in mind you will need a fully synced zebrad node + lwd/zainod light server to use this option. It is also in alpha! ## zingo-cli A third option is also with the Z3 stack but with zingo-cli: [![](https://global.discourse-cdn.com/zcash/original/3X/c/0/c042f11f1757275c112bedd0939d2272f9696d49.jpeg "An introduction to Zingolib + Zaino") ](https://www.youtube.com/watch?v=b5dIuGstMvI) demo instructions: [here](https://github.com/ZecHub/zechub/blob/main/site/guides/Zingolib_and_Zaino_Tutorial.md) github: [here](https://github.com/zingolabs/zingolib) ## Zcash-devtool Lastly, you can also play with the zcash-devtool without needing a full node locally: [![](https://global.discourse-cdn.com/zcash/original/3X/d/0/d0c56d96b4955ae56ff062a878f45a113e8e2505.jpeg "zcash-devtool: the Zcash development multitool with Kris Nuttycombe - ZconVI #zcash") ](https://www.youtube.com/watch?v=5gvQF5oFT8E) github: [here](https://github.com/zcash/zcash-devtool) ---
**Author:** ![purplefish](https://avatars.discourse-cdn.com/v4/letter/p/bbce88/32.png) [@purplefish](https://forum.zcashcommunity.com/u/purplefish)\ **Post date:** [December 18, 2025, 7:26pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/393 "2025-12-18T19:26:26Z")
I’m not keen on using alpha software that may break with every new release, and unfortunately zingolib does not allow utxo/note management, as stated clearly in their readme `Zingo-CLI does automatic note and utxo management, which means it doesn't allow you to manually select which address to send outgoing transactions from. It follows these ` `principles:` So i’ll ask again, are there any stable cli/json rpc libraries that allow for full coin control / utxo management? meaning a MANUAL selection of notes to use as inputs. I’m talking about all address types, transparent & shielded, from what i can tell, rawtransaction only works with TRANSPARENT senders/recipients. It’s very hard to believe that such a functionality doesn’t exist, i’m just not able to find it very easily at all. ---
**Author:** ![dismad](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/dismad/32/18432_2.png) [@dismad](https://forum.zcashcommunity.com/u/dismad)\ **Post date:** [December 18, 2025, 7:32pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/394 "2025-12-18T19:32:49Z")
One thing you may be able to use is a zebra node locally + Zkool which allows note control at the wallet level. github: [here](https://github.com/hhanh00/zkool2) documentation: [here](https://hhanh00.github.io/zkool2/guide/start.html) Can use a full node OR light node with zkool: ![Screenshot_2025-12-18_11-31-58](https://global.discourse-cdn.com/zcash/original/3X/2/5/251fcb74875b84a5b5b8e2cdd254986a3d31bcb0.png) Perhaps this will help you: ![Screenshot_2025-12-18_11-30-05](https://global.discourse-cdn.com/zcash/original/3X/f/d/fd2be0bd680d4dcaaab447c0705706b0437fcf6e.png) ---
**Author:** ![purplefish](https://avatars.discourse-cdn.com/v4/letter/p/bbce88/32.png) [@purplefish](https://forum.zcashcommunity.com/u/purplefish)\ **Post date:** [December 18, 2025, 7:39pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/395 "2025-12-18T19:39:10Z")
It does appear zkool offers some kind of coin control exclusion functionality, but unfortunately it’s a mobile app therefore cannot be automated/scripted, which is what i need. ---
**Author:** ![dismad](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/dismad/32/18432_2.png) [@dismad](https://forum.zcashcommunity.com/u/dismad)\ **Post date:** [December 18, 2025, 7:42pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/396 "2025-12-18T19:42:16Z")
Yes, desktop app works too, so you would need to dig into hahns open source code and create a solution. Btw welcome to the forums! 🥰 ---
**Author:** ![purplefish](https://avatars.discourse-cdn.com/v4/letter/p/bbce88/32.png) [@purplefish](https://forum.zcashcommunity.com/u/purplefish)\ **Post date:** [December 18, 2025, 7:43pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/397 "2025-12-18T19:43:54Z")
So to your knowledge, such a function does not exist in any cli/library ? I’ll wait for others to chime in, but i must admit it’s very puzzling how such an important feature is absent from practically the entire ecosystem. Very strange indeed. ---
**Author:** ![dismad](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/dismad/32/18432_2.png) [@dismad](https://forum.zcashcommunity.com/u/dismad)\ **Post date:** [December 18, 2025, 7:45pm UTC](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044/398 "2025-12-18T19:45:07Z")
> [@purplefish](#): > > an important feature is absent from practically the entire ecosystem Lots of opportunity indeed. 🧑‍🏭 [Previous page](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044.md?page=17) [Next page](https://forum.zcashcommunity.com/t/post-your-technical-support-queries-here/46044.md?page=19)